At the same time equipment can be operated while pumpingvacuum.
同时设备可以边运转边抽真空。
2
LS series wet roots vacuum pump is a rough vacuumpumpingequipment.
LS型直排大气湿式罗茨真空泵属粗真空获得设备。
3
The system of VPI equipment mainly includes vacuum chamber, heating unit, worktable with its drive unit, vacuum pumping unit, gas-charge unit and control unit, etc.