Rotary compressor has many features such as small size, light weight, high efficiency and high reliability and is widely used in residential equipments such as refrigerator, air conditioner and so on.
压缩机是一种常用的机械设备，滚动转子式压缩机以其体积小、重量轻、高效率、高可靠性等特点被广泛应用于冰箱、空调等家电设备。
Small totally enclosed helium compressor is a componend equipment of G-M refrigerator. It is widely used in space environment simulation equipments, vacuum cryopump and vacuum coating equipments etc.
小型全封闭式氦气压缩机是G-M制冷机的配套设备，广泛应用于空间环模设备、真空低温泵、真空镀膜等。
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