| 2 | Luo Ling With Overpasses in Beijing显示文摘The overpass at Dongbianmen was opened to the public in 1988. Its design and construction were difficult because the ancient buildings nearby needed to be protected. The design was complicated because a highway, a railway and a river intersect here. | ZHANG PING, HU DUNZHI and LI SHEXING | 1995 | Women of China1995，，7： | 0 |
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