密封性 meaning in Chinese

air tightness
imperviousness
leak tightness
leak-tightness
leakprofness
tightness

Standard test method for sealability of enveloped gaskets
包封衬垫密封性的标准试验方法
Standard test methods for sealability of gasket materials
垫片材料密封性的标准试验方法
Reasonable structure well sealed , wearresisting axie strong magnet
1结构合理,密封性好。
Rain proof performance test method for buses
客车防雨密封性试验方法
Pressure test and sealed examine for coil
盘管.耐压试验与密封性检查

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