watertightadj.不漏水的;无懈可击的
watertight lighting fitting防水照冒置
Watertight explosionproof.水密或防爆。
Watertight Quick-Acting Door速关水密门
Watertight or explosionproof.水密或防爆。
watertight sub-division arrangement水密分舱布置
watertight camera for submarine cinematography海底拍摄用防水电影摄影机