常见例句雙語例句This paper introduces the construction techniques of U shaped caisson of main pier of Huanghe bridge on Yingu expressway.本文介紹銀古高速公路三標黃河特大橋(拓寬工程)主墩承台U型沉井施工技術,重點介紹沉井下沉施工及糾偏方法。 返回 caisson pier