The vacuum system USES a compact vacuum pump group and compound gauges with wide measuring range and good hermetization.
真空系统采用复合真空计及真空机组，测量范围宽、设备紧凑、密封性能好。
Results show that high strength of joint and its good hermetization can be arrived by using proper structure and reasonable technology.
研究表明，只要采取适当的结构和合理的工艺，即可获得高强度的接合和良好的气密性。
On the basis of introduction of commonly used detection methods for hermetization, the demerits of differential pressure (D/P) measure are analyzed.
在介绍目前常用的气密性检测方法的基础上，分析了普通差压法的缺陷。
As an important part of the ship, canopy plays the role of hermetization and protection of cargo, which influences the safeness of cargo directly in transportation.
舱盖是船舶上的重要组成部分，起着密封、保护货物的作用，它直接关系到货物运输过程中的安全。
As an important part of the ship, canopy plays the role of hermetization and protection of cargo, which influences the safeness of cargo directly in transportation.
舱盖是船舶上的重要组成部分，起着密封、保护货物的作用，它直接关系到货物运输过程中的安全。
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