double-seal

基本解釋

The pot cover has applied double sealing.
鍋蓋采用雙道密封。
Introducing the structure design,working principle and performance of double sealed guide valves.
介紹了雙密封導軌閥的結(jié)構設計、工作原理與性能特點。
Application of Dry Gas Double Seal for Hydrogen Compressor
雙端面干氣密封在氫壓機上的應用
There are double seals for ball baring unit and it is normally pre-greased for working in the condition of dust, slob and causticity.
帶座外球面軸承一般為預填裝潤滑脂，采用雙層密封形式，適合在粉塵、泥水、腐蝕性介質(zhì)的場合內(nèi)使用，利于主機工作。
Application of Liquid-filled Double Seal in Floating Roof Tank
充液式雙重密封在浮頂罐中的應用