... water-tight concrete 不透水混凝土 watertight construction 防水结构 water-tight machine 不透水型电机，防水型电机 ...
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Please change this penetrating piece into watertight construction.
请将这个穿舱件改成水密的。
Watertight design and construction for the powerhouse is presented for reference to the similar projects.
介绍了其防渗设计与施工，供以后类似工程借鉴。
In vessel construction, a greater number of watertight bulkheads results in ____.
在船舶结构中，更大数量的水密舱壁引起减少水密分舱。
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