box caisson foundation 沉箱基础 ; 深基础沉箱基础

box caisson dock [船] 沉箱浮坞

timber box caisson 木沉箱

box caisson foundine 沉箱基础

Caisson box 箱式沉箱

box x caisson 箱形沉箱 ; 匣式沉箱

sliding box-shaped caisson 滑动式箱形沉箱

caisson and box culvert 沉箱