rough pump的例句大全

This type of compressor has simple construction, a small amount of spare parts, small volume size and high efficiency. It is very efficient to be applied to air refrigerating and small air compressor, rough vacuum pump and high pressure fan.

这种压缩器结构简单、零件数量少、体积尺寸小和效率高，可很好地应用于空气制冷空调器及用做小型气体压缩机、粗真空泵、高压风机。

it is very efficient to be applied to air refrigerating and small air compressor, rough vacuum pump and high pressure fan.

这种压缩器结构简单、零件数量少、体积尺寸小和效率高，可很好地应用于空气制冷空调器及用做小型气体压缩机、粗真空泵、高压风机。

LS series wet roots vacuum pump is a rough vacuum pumping equipment.

LS型直排大气湿式罗茨真空泵属粗真空获得设备.