双重密封 meaning in English

double seal
double-seal
dual-seal

For example , helicopter rotors are now double - taped to reduce wear from the sand
比如，直升机的旋浆采用了双重密封以减少沙尘的磨损。
The submersible pump and motor have a double seal with a moisture detection system
配置潮气监测系统的潜水泵和电机具有双重密封装置。
The dual seal failure module is a specialized control for monitoring seal failure
双重密封故障模块是一个特殊的控制组件，用于监测密封故障。
The bottom bearing applies both labyrinth seal and frame seal , which have good performance of sealing . the main shaft is anticorrosive
下轴承端盖密封采用双重密封，可确保密封效果，主轴采用防腐新技术，能保护主轴免受腐蚀。