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。
In the first case (horizontal spindle), the machine usually has a planer-type reciprocating table on which the workpiece is held.
在第一种情况(卧式主轴)，卧式磨床通常具有安装工件的刨床式往复工作台。
A type of fluid pump in which reciprocating pistons or plungers displace the fluid.
流体泵的一种类型。它的往复运动的活塞或柱塞驱替流体。
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