watertight work的意思|示意
美 / /
英 / /
水密工程
watertight work相关例句
Cofferdam: Watertight enclosure from which water is pumped to expose the Bed of a Body of water in order to permit the construction of a pier or other hydraulic work.
围堰：防水围护堤，将堤内的水抽尽，露出水底以便建造桥墩或其它水工结构。