片语
rectangular open caisson矩形沉井
open caisson engineering沉井工程
open caisson structure沉井构造
open caisson technique沉井工艺
continuous open caisson连续沉井
open dredged caisson method detail敞口挖泥沉箱法
super large open caisson特大型沉井
open caisson foundation[建] 沉井基础
sinking open caisson沉井下沉