double-seal

基本解释

The pot cover has applied double sealing.
锅盖采用双道密封。
Introducing the structure design,working principle and performance of double sealed guide valves.
介绍了双密封导轨阀的结构设计、工作原理与性能特点。
Application of Dry Gas Double Seal for Hydrogen Compressor
双端面干气密封在氢压机上的应用
There are double seals for ball baring unit and it is normally pre-greased for working in the condition of dust, slob and causticity.
带座外球面轴承一般为预填装润滑脂，采用双层密封形式，适合在粉尘、泥水、腐蚀性介质的场合内使用，利于主机工作。
Application of Liquid-filled Double Seal in Floating Roof Tank
充液式双重密封在浮顶罐中的应用