| 释义 |
沉箱chénxiāng一种在水底作业的设备,用金属或混凝土制成,形状像箱子,下面没有底。用时沉入水底,同时通入压缩空气将水排出,人在里面工作。{caisson; bottomless trunk of metal or concrete for underwater operation; when sunk to the bottom of the water, compressed air is injected to squeeze water out so that a worker can stay in it and carry on work underwater} |