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貴州沿河沙坨特大橋順利合龍

2018-09-11 08:05來(lái)源：新華網(wǎng)
 

 

貓道是懸索橋施工時(shí)架設在主纜之下、平行于主纜的線(xiàn)形臨時(shí)施工便道，是主纜系統乃至懸索橋整個(gè)上部結構的施工高空腳手架平臺，作為極其重要的臨時(shí)施工設施，大橋竣工后被拆除。

 

[責任編輯：李曉蕾]

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