The composition, function and structural design he gas - tight system are introduced.

介绍了气封系统的组成 、 功用及其组件和系统的结构设计.

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High - intensity - type chimeric hedging may be gas - tight syringe safety connections, never loose.

高强度嵌合式套头,可与针筒安全气密式连接, 绝不松脱.

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Expansion joints are leak proof and maintain liquid and gas tight seals with connecting equipment.

膨胀节是防泄漏的,带有疏水,且与相连的设备之间具有气锁密封性.

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