leak tightness meaning in Chinese

密闭度
密封性
气密性

Non - destructive testing - terminology - terms used in leak tightness testing
无损检验.术语.第8部分:防漏泄试验用的术语
Non - destructive testing . terminology . part 8 : terms used in leak tightness testing
无损检测.术语.第8部分:渗漏密封试验术语
Testing for leak tightness by means of ammonia . locating of leaks by the suction cup method
用氨进行泄漏密封检验.用吸盘法确定泄漏位置
Testing for leak tightness by means of ammonia . locating of leaks by overall pressurization
用氨进行泄漏密封检验.用整体增压法确定泄漏位置
Non - destructive testing - terminology - part 8 : terms used in leak tightness testing ; trilingual version en 1330 - 8 : 1998
无损检验.专术语.第8部分:密封试验的术语.三种语言版