booster vacuum pump

基本解释

The vacuum system utilizes two vacuum pumps and one booster pump to achieve a vacuum.
真空系統採用兩台真空泵和一台羅茨泵來實現真空。
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.
它可以單獨使用，琯道泵也可作爲增壓泵、擴散泵、分子泵的前級泵使用。
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年真空行業會議確定四大攻關項目之一是油增壓泵對應高吸入壓強提高抽速。