1) nitrogen gas seal equipment

氮气密封装置
2) gas sealing device

气密封装置
1.
Application of gas sealing device to spindle of flash evaporation eduipment

气密封装置在闪蒸机主轴上的应用
3) air seal

空气密封装置
4) gas lock system

气体密封装置<冶>
5) air hight equipment

气体密封装置
6) nitrogen gas sealing

氮气密封
1.
The mechanism of oil vapour loss is discussed and the application of nitrogen gas sealing technique to store and transportation is introduced.
介绍了氮气密封技术在储运生产中的应用。
补充资料:不依赖空气的动力装置