维普中文期刊产品整合服务
318篇 您的检索式:作者名="Open"
    题名 作者 年代 出处 被引量
1Research and Application Prospect of Computer Simulation on Heat Treatment Process显示文摘In this paper, a modified temperature-phase transformation-stress/strain field coupled 3D non-linear mathematical model was used in the computer simulation on heat treatment processes of workpieces including catch jaw, anchor ring, cold roller, large-scale bearing roller, nitriding crank shaft, etc. The simulation on complicated technologies such as pre-cooled quenching, double media quenching, self-tempering, difference temperature heating, nitriding distortion was carried out. The optimum design of heat treatment technology has been realized. The successful application of computer simulation on heat treatment have also been demonstrated.Pan Jiansheng, Li Yongjun, Cu Jianfeng, Hu Mingjuan Open Research Lab for High Temperature Materials & Testing, SJTU, Shanghai, 200030 2000Journal of Shanghai Jiaotong university(Science)2000,5,1:19
2Discovery and character of the Kunlun-Yellow River Movement显示文摘Based on geomorphological, tectonic and sedimentary data, a Kunlun Yellow River Tectonic Movement has been recognized in 1 10-0 60 Ma B.P. This tectonic movement, which leads to uplift of the Qinghai_Xizang (Tibet) Plateau from 1 500 to 3 000-3 500 m, is periodic, abrupt and changeable in the movement rate of uplifting and slide slipping.CUI Zhijiu 1, WU Yongqiu 2,3 and LIU Gengnian 1 1. Department of Geography, Peking University, Beijing 100871, China 2. Open Research Laboratory of Environmental Changes and Natural Disaster of State Education Commission, Beijing 100875, China 1998Chinese Science Bulletin1998,43,10:16
3DISLOCATION DISSOCIATIONS AND FAULTENERGIES IN Ni_3Al ALLOYS DOPED WITH PALLADIUM显示文摘Dislocation structures in polycrystalline Ni 3Al alloy doped with palladium deformed at room temperature have been investigated by transmission electron microscopy. The structure consists mainly of dislocations dissociated into a /2〈011〉 super partials bounding an anti phase boundary (APB). Dislocations dissociated into a /3〈112〉 super Shockley partials bounding a superlattice intrinsic stacking fault (SISF) are also common debris. The majority of the SISFs are truncated loops, i.e. the partials bounding the SISF are of similar Burgers vector. These faulted loops are generated from APB coupled dislocations, according to a mechanism for formation of SISFs proposed by Suzuki et al , and recently modified by Chiba et al . The APB energies for {111} and {010} slip planes are measured to be 144±20 mJ/m 2 and 102±11 mJ/m 2 respectively, and the SISF energy has been estimated to be 12 mJ/m 2 in this alloy. It is concluded that the dislocation structure in Ni 74.5 Pd 2Al 23.5 alloy deformed at room temperature is similar to that in binary Ni 3Al, and the difference in fault energies between these two alloys is small. Thus, it seems unlikely that the enhancement of ductility of Ni 74.5 Pd 2Al 23.5 results from only such a small decrease of the ordering energy of the alloy. SISF bounding dislocations also have no apparent influence on the ductilization of Ni 74.5 Pd 2Al 23.5 alloy.J. Sun *# , C. S. Lee # and J. K. L. Lai # * Open Lab for High Temperature Materials & Tests, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China # Department of Physics and Materials 1999中国有色金属学会会刊:英文版1999,9,S1:16
4POLYMER CHARGE AND MOLECULAR WEIGHT EFFECTS ON TREATED IRRIGATION FURROW PROCESSES显示文摘Application of 5-10 mg L-1 water soluble anionic polyacrylamide (PAM) to furrow irrigation water during flow advance substantially reduces sediment loss and increases net infiltration. We hypothesized that PAM_s solvated molecular conformation influences its irrigation-management efficacy. The study was conducted in Kimberly, Idaho, on Portneuf silt loam (Durinodic Xeric Haplocalcids), under furrowirrigated beans (Phaseolus vulgaris ) at a 1.5% slope. Polyacrylamides with contrasting molecular weight (anionic; 4-7, 12- 15 and 14-17 MDa, i.e. Mg mol-1 ), charge type (neutral, anionic, cationic), and charge density (8, 19, 35 mol %) were tested in two studies. Inflow rate was 23 L min-1 during furrow advance, and 15 L min-1 for the remaining set. Anionic and neutral PAMs were twice as effective as cationic PAMs for controlling sediment loss in new furrows. The order of effectiveness for overall soilloss control was : anionic >neutral >cationic PAM, and efficacy increased with increasing charge density and/or molecular weight. Net furrow infiltration increased by 14 to 19% when PAM treatment molecular weight was reduced from 17 to 4 MDa. General trends suggested that medium and high charge density anionic and neutral PAM produced the greatest increase in infiltration compared with controls.Compared with untreated furrows, neutral PAM gave the greatest season-long net infiltration gains (5%),while charged PAMs tended to increase net infiltration early in the season on new furrows but decreased infiltration on repeat-irrigated furrows later in the season.R. D. Lentz(USDA-ARS, Northwest Irrigation and Soils Research Laboratory, Kimberly, ID)R. E. Sojka (Landcare Research, New Zealand, Ltd, Palmerston North, New ZealandNote: The manucript of this paper was received in March 1999, Discussion open until March 2000International Journal of Sediment Research2000,15,1:13
5Respondence and feedback of modern sand deserts to climate change ——A case study in Gurbantunggut Desert显示文摘The research on the respondence and feedback of modern sand deserts to the climate change is an important component part in the studies on the global climate change. Deserts respond to the climate change, meanwhile, they affect the climate with their feedback of peculiar environment during the respondence. Many researches on desert climate have been carried out at home and abroad. However, there is little research on the respondence and feedback of modern fixed, semi-fixed and mobile deserts in arid areas to the climate change, in which the factor analysis as well as the parameter changing effects is especially the difficult problem all along. In this note, the parameters of the respondence and feedback of Gurbantunggut Desert to the climate change are measured and analyzed, some variable parameters of water-heat exchange are obtained, and a numerical model of desertification is developed according to a series of climate change of about 40 years and the variable relations of meteorological and physicalWEI WenshouXinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China Open Laboratory of Ice-Core, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy ofSciences, Lanzhou 730000, China 2000Chinese Science Bulletin2000,45,12:10
6北京四中房山校区显示文摘这个占地45hm2的新建公立中学位于北京西南五环外的一个新城的中心.是著名的北京四中的分校区。新学校是这个避免了早期单一功能的郊区开发模式,更加健康和可持续的新城计划中重要的一部分,对新近城市化的周边地区的发展起着至关重要的作用。OPEN Architecture 2014建筑学报2014,,11:9
7Simulating experiment on soaking and leaching of Cd in the Niujiaotang Cd-rich Zn deposit, Guizhou Province, China显示文摘CADMIUN is a dispersed element and has long been explored and utilized as a by-product of Pb-Zn ores.Current research on Cd is focused on the following aspects: (i) environmental effects due to the migration and enrichment of Cd as a heavy metal poisonous element in water (rivers, lakes, industrially discharged waste water), sediments and soils. The research paper concerned can be seen in variousjournals of environmental science; and (ii) exploration of the existing forms of Cd and its independentminerals and ordinary geological problems. However, many researchers have paid little attention tothe geochemical behavior of Cd and its environmental effects under supergene weathering-leaching conditions in Cd-bearing Pb-Zn deposits. Cd can be separated from Zn in the supergene weathering processand its sulfate CdS0-4 is easy to dissolve in water. Our preliminary studies showed that Cd can be enrichedto some extent under supergene weathering conditions in Niujiaotang deposit. The stronger the extentYE LJn and LlU Tiegeng Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 1999Chinese Science Bulletin1999,44,S2:7
8Comparison of eastern paleo-Tethyan ophiolites and its geodynamic significance--Evidence from Dur'ngoi ophiolite显示文摘Nd-Pb isotopic geochemistry of metabasalt from Dur抧goi ophiolite, Qinghai Prov-ince, NW China reveals the presence of DMM mixing with EMII components in its upper mantle source, which is comparable with present Indian MORB. Comparisons indicate that the geo-chemistry, chronology and source characteristics of Dur抧goi ophiolite coincide with Pa-leo-tethyan ophiolites from 揝anjiang?area. Together with evidences from regional geology in adjacent areas, this study proves that independent paleo-tethyan basins evolved contemporarily, the dynamics of which is attributed to the interaction of mantle plume with over-riding lithosphere.CHEN Liang1,2, SUN Yong1,2, PEI Xianzhi2, Feng Tao2 & Zhang Guowei2 1. Open Laboratory of Continental Dynamics, Ministry of Education, Northwest University, Xi抋n 710069, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2004Science China Earth Sciences2004,47,4:7
9MICROSTRUCTURAL EVOLUTION AND MECHANISMS OF SUPERPLASTICITY IN LARGE GRAINED IRON ALUMINIDES显示文摘The superplastic behavior has been found in Fe 3Al and FeAl alloys with grain sizes of 100~600 μm. The large grained Fe 3Al and FeAl alloys exhibit all deformation characteristics of conventional fine grain size superplastic alloys. However, superplastic behavior was found in large grained iron aluminides without the usual prerequisites for the superplasticity of a fine grain size and grain boundary sliding. The metallographic examinations have shown that average grain size of large grained iron aluminides decreased during superplastic deformation. Transmission electron microscopy (TEM) observations have shown that there were a great number of subgrain boundaries which formed a network and among which the proportion of low and high angle boundaries increased with the increase of strain. The observed superplastic phenomenon is explained by continuous recovery and recrystallization. During superplastic deformation, an unstable subgrain network forms and these subboundaries absorb gliding dislocations and transform into low and high angle grain boundaries. A dislocation gliding and climb process accommodated by subboundary sliding, migration and rotation, allows the superplastic flow to proceed.Dongliang Lin (T.L.Lin) and Yi Liu Open Laboratory of Education Ministry of China for High Temperature Materials Tests, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China 1999中国有色金属学会会刊:英文版1999,9,S1:7
10Paleoenvironmental information recorded by pollen in B-3GC gravity core in Okinawa Trough显示文摘Based on pollen records in B-3GC gravity core, environmental change since 9500 aBP of Okinawa Trough and its adjacent islands was derived. The result showed that the most time during this period was in a warm temperate climate except in middle Holocene (6800-4400 aBP) that was under subtropical climate control. During 9500-8300 aBP and 3100-2000 aBP periods, it appeared colder and drier than the rest time. The original area of pollen sources surrounding Okinawa Trough was covered by evergreen and deciduous broadleaf forest alternatively with mixed broad-leaf-conifer forest distributed in high mountainous areas. Usually, these three kinds of forests existed at the same time with difference in altitude. Pollen from subtropical and tropical plants increased obviously in about 5000-6000 aBP, reflecting a great lifting of vegetation zone and expansion of evergreen broad-leaf forest in the study area. However, there was a slight descending of plant zone and shrinking of evergreen broadleaf forest duringSONG Changqing, SUN Xiangjun & Yoshiki SaitoNational Natural Science Foundation of China, Beijing 100085, China Open Lab of Marine Geology, Tongji University, Shanghai 200039, China Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Geological Survey of Japan, Higashi 1-1-3, Tsukuba, Ibaraki, 305-8567,Japan 2001Chinese Science Bulletin2001,46,11:7
11Zn-Cu Interaction Affecting Zn Adsorption and Plant Availability in a Metal-Contaminated Soil显示文摘Zn-CuInteractionAffectingZnAdsorptionand PlantAvailabilityinaMetal-ContaminatedSoilD.L.RimmerandLuoYongming(DepartmentofAgric...D. L. Rimmer and Luo Yongming(Department of Agricultural and Environmental Science, Universitg of Newcastle open Tyne, Newcastle apon Tyne NE1 7RU UK) 1996Pedosphere1996,6,4:6
12Youger Dryas and Heinrich events recorded by magnetic susceptibility of sediments from the central temperature area of Western Pacific Warm Pool显示文摘Three short geomagnetic excursions, the Go thenburg, Mono Lake and Mungo (or Maelifell) in the Brunhes Positive Polarity period, were revealed based on the studies of magnetostratigraphy, susceptibility (c) and d 18O of sediments in core WP 92-5 from the central temperature area of the Western Pacific Warm Pool (WPWP), and the ages of them are 12.111.3 kaBP, 25.024.0 kaBP, and 31.028.0 kaBP respectively. Furthermore, the Younger Dryas (YD) and Heinrich (H) cold events were also discov- ered in this core by the susceptibility record. The YD cold event occurred at the depth of 3022 cm with an age of 11.510.6 kaBP; H1, H2 and H3 cold events occurred at depths of 5139 cm, 10891 cm and 140126 cm with ages of 15.113.0 kaBP, 25.022.1 kaBP and 30.628.2 kaBP respectively, which well correspond to the H1, H2, H3 events recorded by susceptibility of core SU90-09 from middle At- lantic, indicating that the susceptibility change of marine sediments can be an important sign of climatic frequent fluc- tuations.TANG Xianzan, CHEN Zhong,YAN Wen & CHEN Muhong The Open Laboratory of Geology and Paleoenvironment of Marginal Sea, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China 2003Chinese Science Bulletin2003,48,8:5
13活性氧化铝除氟研究显示文摘针对目前活性氧化铝饮水除氟中存在的问题,进行了生产性试验研究,通过采用原水投加CO_2气体降低pH值、小颗粒活性氧化铝、大流量短历时的NaOH循环再生法等新技术,提高了活性氧化铝的吸附容量和处理水的能力,克服滤料板结和假疲劳,除氟效果稳定可靠,水质好,再生时间短,用药省,降低了基建投资和运转费用。North China Municipal Engineering Design Institute A full-scale plant was set up for studying the existing problems on the fluoride removal from drinking water by activated alumina. Some new methods was adopted,such as the addition of CO2to reduce water pH value,the use of small-sized activated alumina,and the employment of a cyclic regeneration at large flow rate with NaOH as regenerant,which result in the improvement of adsorption capacity of activated alumina and treatment capacity, the elimination of the hardening of filtration materials and false fatigue,stable and reliable effectiveness,good quality in water,short regeneration time,small consumption of regenerant. And then the capital and openational costs were reduced. 1989中国给水排水1989,5,3:5
14Experimental Observation of the Ore-Forming Fluid NaCl-H_2O System in the Earth Interior显示文摘The NaCl-H2O binary system is a major component of solutions coexisting with ores. Observation ofsaturated solutions of NaCl-H2O by using the method of hydrothermal diamond anvil cell (HDAC) is a new approach tothe study of ore-forming fluids. The salinities of NaCl-H2O solutions in experimental observation are in a range of 32-55%. The observed temperature range is 25℃-850℃, and the pressure range 1 atm-10 kb. In this temperature-pressure range, the supercritical single phase, two phases (L,V) close to the critical state and two-phased (L+V) immis-cible region were observed. And for the salinity of 35% the two phase L+V immiscible region of NaCl-H2O solutionwas observed in a range of 253-720℃. Another temperature range, 400-817℃, was observed for the immiscible two-phased region of 50% salinity solution. In the high-temperature part of the two-phased immiscible region, the phase na-ture is very unstable. A 'critical phenomenon' was observed when the heating path was very close to the critical state.It is possible to observe a ’critical phenomenon’: an 'explosion' occurred almost constantly at the interface between theliquid and vapour and the interface is rather obscure. A continuous transition between phases L and V could be foundin the immiscible L+V phase while heating continuously. Moreover, as the NaCl-H2O solution was separated into liq-uid and vapour phases, static charges surrounding each vapour bubble could be seen, and these bubbles were attractedtogether by the static charges to form a special solution structure. Besides, critical states of different salinities of NaCl-H2O were observed in order to study the properties of the fluids occurring in the rocks in the earth interior, the origin ofore-bearing fluids and the significance of supercritical fluid with respect to the ore formation. The comparison of the sa-linity data of the fluid inclusions in the minerals of ore deposits with observations of NaCl-H2O under HDAC in theconditions of high temperatures and pressures, combined with further thermodynamic analysis of ore-formation condi-tions would explain in depth the factors determining the ore formation.ZHANG Ronghua and HU Shumin Open Research Laboratory of Geochemical Kinetics, Chinese Academy of Geological Sciences,26 Baiwanzhuang Road, Beijing 100037, China 1999Acta Geologica Sinica(English Edition)1999,73,1:5
15Metallomics:An integrated biometal science显示文摘Metallomics is an emerging scientific area integrating the research fields related to the understanding of the molecular mechanisms of metal-associated life processes and the entirety of metal and metalloid species within a cell or tissue type. In metallomics,metalloproteins,metalloenzymes and other metal-containing biomolecules in a biological system are referred to as metallomes,similar to genomes and proteomes in genomics and proteomics,respectively. This review discusses the concept of metallomics with a focus on analytical techniques and methods,particularly the so-called hyphenated techniques which combine a high-resolution separation technique (gel electrophoresis/laser ablation,chromatography or capillary electrophoresis) with a highly sensitive detection method such as elemental (inductively coupled plasma,ICP) or molecular (electron spray ionization (ESI) or matrix-assisted laser desorption/ionization (MALDI)) mass spectrometry,or nuclear X-ray fluorescence/absorption spectrometry. The applications of these advanced analytical methods in the identification of metallo-/phospho-/seleno-proteins,probing of relationships between structure and function of metal-loproteins,and study of clinically used metallodrugs will be selectively outlined,along with their advantages and limitations.GE RuiGuang1,2 & SUN HongZhe1 1 Department of Chemistry and Open Laboratory of Chemical Biology,The University of Hong Kong,Hong Kong,China 2 Laboratory of Integrative Biology,College of Life Sciences,Sun Yat-Sen University,Guangzhou 510006,China 2009Science China Chemistry2009,52,12:5
16Primary Study on Quantitative Reconstruction of Middle-Late Eocene Climate in Jianghan Basin显示文摘This paper reports our primary effort in the quantitative reconstruction of paleoclimate based on the thrine in phytoecology of the affinity parent plants in the stratigraphic pollen records. The Eocene pollen data come from our former study on the Mingjia borehole 1 in the Jianghan basin. The fluctuating trend in the parameter curve of climate shows that the climate in the Middle Eocene in the Jianghan basin was more or less comparable with that of the present 22°-26°N, characteristic of a humid, semi humid central southern subtropical climate. The annual temperature at that time dropped by 1 ℃-4 ℃ in the Late Eocene, approximately equal to that of the present 23°-28°N of northern central subtropical climate. However, the climate composite at that time, characterized by higher temperature, small annual range and big fluctuation in precipitation, was quite different from the present one. The average temperature in January in the Middle Eocene, higher than that of today, ranged between 5 ℃ and 9 ℃, indicating that no effect of winter monsoon occurred in the Middle Eocene, though such an effect may have occurred occasionally in the Late Eocene. Major temperature decline is recognized at the depth of 2 100 m in the borehole, as was indicated by the decline in average January temperature, the increase in annual range, and the increase in the deciduous broad leaved types of trees in the spore pollen assemblage. The sharp fluctuation in the annual precipitation, usually raging from 300 to 1 700 mm, was favorable for the migration and accumulation of salty deposit. When the precipitation was lower than 1 000 mm, ephemera shrub increased at the same depth as that of the salty deposit. It is, therefore, deduced that the formation of the salty deposit was attributed mainly to the dry and hot environment in the high mountains and deep basins. The small annual precipitation and the intense fluctuation are favorable for the sustainable accumulation of the salts, which is different from the present salty accumulation in the Northwest China.Tong Guobang Liu Zhiming Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Zhengding 050803 Open Laboratory of Saline Lake Resources and Environment, Chinese Academy of Geological Sciences, Beijing 100037 Zheng Mianping Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037 Research & Development Center of Saline Lake and Epithermal Deposit, Chinese Academy of Geological Sciences, Beijing 100037 Wang Weiming Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008 2002Journal of China University of Geosciences2002,13,3:5
17LOCAL SCOUR ESTIMATION AT BRIDGE SITE: MODIFICATION AND APPLICATION OF LACEY FORMULA显示文摘In the recent years, it has been established that b/h or h/b (b = length of the structure in the lateral direction and h = approach flow depth) is the dominant factor for the estimation of local scour depth around abutments and piers. One of the major limitations of the Lacey formula is that it predicts only one value of the scour depth for a specific river because of the absence of important parameters b and h. Therefore, its application is quite uncertain for variable b and h. Considering its limitations and experimental facts of flow concentration and shear stress amplification close to above structures, the original Lacey formula is modified introducing the parameters b and h. The applicability of the original as well as modified Lacey formula is tested to the data collected from major rivers in Bangladesh.Md. Munsur RAHMAN iwfm.buet.ac.bd at present: Post Doctoral Research fellow Ujigawa Open Laboratory Disaster Prevention Research Institute Kyoto University Shimomisu Yoko-Oji Fushimi-Ku Kyoto 612-8235 Japan M. Anisul HAQUE 2003International Journal of Sediment Research2003,18,4:4
18Numerical Simulation on Thermal Stress of Large-scale Bearing Roller during Heating Process of Final Heat Treatment显示文摘hi this paper, the non-linear finite element method had been applied to calculate the thermal stress evolving process of the large-scale bearing roller during heating process of final heat treatment. It was found that two stress peaks appeared during heating process and the second stress peak was higher than the first. If the preheating time was elongated, the second stress peak was reduced distinctly. Therefore, the pre-heating time should be elongated suitably to ensure safety in the practical manufacture process.Li Yongjun, Pan Jiansheng, Zhang Weimin, Gu Jianfeng, Hu Mingjuan Open Lab of the Educational Ministry for High Temperature Material & Tests, SJTU, Shanghai, 200030 2000Journal of Shanghai Jiaotong university(Science)2000,5,1:4
19Aeolian Facies Belts in the Taklimakan Desert显示文摘At least at the beginning of the last glacial epoch, the facies belts of dune sand, sandy loam and loess formed by winds had existed in the Taklimakan desert and areas south of it. There were no appreciable changes in the NE and NW wind systems and their wind fqrces that deposited dune sand, sandy loam and loess in the global cold stage since the last glacial epoch (accordingly no marked shifts of the boundaries of these aeolian facies belts took place. In the global warm stage since then, the climate in the Taklimakan desert and areas south of it became warm and dry, resulting in ablation of substantial volumes of ice and snow in their surrounding mountains and thus forming alluvial and diluvial deposits in the region. The alluvial-diluvial actions, however, failed to change the general framework of aeolian facies belts.Li Baosheng, Dong Guangrong, Zhang Jiasheng, Li Sen,Jin Heling, Chen Huizhong, Wen Xiangle, Wang Yao, Lanzhou Desert Research Institute, Chinese Academy of Sciences, Lamhou, Gansuand Zhu YizhiXi’an Open Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi’an, Gansu Fei Zhenbi 1995Acta Geologica Sinica(English Edition)1995,69,3:4
20Selenium Enrichment in Cambrian Stratabound Gold Deposits in the Western Qinling Mountains显示文摘Stratabound gold deposits in the western Qinling Mountains occur in Cambrian chert formation composed of carbonaceous chert and carbonaceous slate. The distinctive chert formation provides important grounds for the mineralization and controls on the formation of gold deposits. Study shows that Se is exceptionally higher in both host rocks and gold orebodies. It may be recovered as a valuable component in ores for total utilization, and in some localities even independent Se orebodies (which are mined exclusively for Se) may be delineated. In gold ore Se mainly occurs as independent minerals or in the isomorphous form in sulphides and there is a positive correlation between Se and Au.Liu Jiajun,Open Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550002Zheng Minghua, Chengdu Institute of Technology, Chengdu, Sichuan 610059Liu Jianming, Research Centre of Mineral Resources Exploration, Chinese Academy of Sciences,Beijing 100101Zhou Yufeng, Gu Xuexiang, Zhang Bin, Lin Li, Chengdu Institute of Technology, Chengdu, Sichuan 610059and Lu Wenquan Institute of Comprehensive Utilization of Mineral Resources, Chengdu, Sichuan 610041 1997Acta Geologica Sinica(English Edition)1997,71,4:3
返回顶部 每页显示:
共16页 首页 上一页 第1页 下一页 末页 /16 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费