watertightadj.不漏水的;无懈可击的
watertight groutin灌浆防渗
watertight stratum土壤不透水层
watertight basement水密性地下室
watertight cesspool不透水污水坑
watertight riveting水密铆合
watertight building防水建筑物
watertight bulkhead水密舱壁
watertight membrane防水膜
watertight blockade严密封锁
watertight concrete抗渗混凝土