The vacuum system utilizes two vacuum pumps and one boosterpump to achieve a vacuum.
真空系统采用两台真空泵和一台罗茨泵来实现真空。
2
Use: May serve as the transmission in the oil transfer system, the boosterpump.
在真空系统中，这种泵可单独使用，或作为增压泵、扩散泵等的前级泵。
3
The high voltage variable frequency transformation of power plant's pump system of condensation water pump, condensation water boosterpump is described briefly.