At present household refrigerators and air conditioner compressors are cubage type refrigeration compressor, which can be divided into reciprocating compressors and rotary compressor.

目前家用冰箱和空调器压缩机都是容积式的制冷压缩机，其中又可分为往复式压缩机和旋转式压缩机。

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Equivalent to sing the role of round piston reciprocating piston compressor, when the satellite gear shafts relative motion at the Beaufort, the closed volume decreases, the gas being compressed.

星轮的作用相当于往复活塞压缩机的活塞，当星轮齿在螺槽内相对运动时，封闭容积逐渐减小，气体受到压缩。

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If use reciprocating compressor, can choose DAA100 or DAA150 air compressor lubricants.

如采用往复式压缩机，可选用DAA100或DAA150空气压缩机油。

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Each LNG In A Box unit is fully equipped with a gas pre-treatment system, cold box assembly and boil off gas compressor as well as a GE's turboexpander compressor, high-speed reciprocating compressor, electric motor, driver and control system.

WSJ: GE Unveils LNG In A Box(TM) System; Gasfin Selects New Technology for Fueling Stations in Europe