booster vacuum pump

基本解释

The vacuum system utilizes two vacuum pumps and one booster pump 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。
This Model Vacuum Pump can be used along, or as the backing pump of the other kinds of pumps, such as booster pump, diffusion pump, molecular pump etc.
它可以单独使用，管道泵也可作为增压泵、扩散泵、分子泵的前级泵使用。
One of the 4 items decided at the vacuum trade meeting in 1974 was to raise the pumping speed of oil booster pump following the raise of sucking pressure.
1974年真空行业会议确定四大攻关项目之一是油增压泵对应高吸入压强提高抽速。