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1980s 对称平衡悬臂法施工的大跨度预应力混凝土箱型截面连续梁得到了迅速发展 (1 janv. 1980 – 1 janv. 1990)

Ajouté au bande de temps:

【桥见武汉】武汉桥梁发展里程碑 Bridges of Wuhan CT(modern)

il y a 1 mois

1

0

287

Date:

1 janv. 1980

1 janv. 1990

~ 10 years

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