短语词组短语box x caisson 箱形沉箱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sliding box -shaped caisson 滑动式箱形沉箱Caisson box 箱式沉箱caisson and box culvert 沉箱 返回 box caisson