gas-tightness test 气密性试验
Test method for gas-tightness 气密性测试方法
gas-tightness 不透气性
gas tightness 气密性 ; 气体迁移激光器
Gas Tightness Good 气密性好
gas tightness test 气密性试验
concrete gas-tightness 混凝土气密性
gas tightness detection 气密性检验
Gas tightness and water tightness ensure Goldcommon door and window system to produce healthy and comfortable living conditions.
柯曼门窗系统创造健康、舒适的居住环境，离不开优良的气密性和水密性。
The processing accuracy of the component, the fit-up gaps of the moving parts, the requirements of gas tightness detection, and the fit-up technology of the rotors and stators were proposed.
提出了机件加工精度、运动部件配合间隙及阀组气密性检测要求以及电机定转子装配工艺要求。
High conductivity and gas tightness are the basic requirements for bipolar plate materials.
高电导和气密性是双极板材料需有的基本性能。
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