water tightness
... air tightness 气密度 water tightness 水密性;水密度,不透水性 gas tightness 不透气性,气密性 ...
water proofness
... water proof test防水试验 water proofness水密性 water pump水泵 ...
watertightness test
watertighttest ; field water tightness test
watertightness performance ; water -tightness
水密性,舰船船体浸水或舱、柜充水后,其结构和相应的关闭设备等在一定水压作用下保持不透水的密闭性能、防止水渗漏的能力。