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4.1 2002的AASHTO钢桥制造（英文版）This document is a standard developed by the AASHTO/NSBA Steel Bridge Collaboration. The primary goal of the Collaboration is to achieve steel bridges of the highest quality and value through standardization of the design, fabrication, and erection processes. Each standard represents the consensus of a diverse group of professionals.
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yichunwo
沙发
2021-06-03 11:38:03
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xiexianbin110
板凳
2021-05-21 14:20:21
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加载更多我以前算的也是这样35 60 35的
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你给的信息太少了
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