在负荷较小时，压缩机采用低速运转，吸气压力升高，这对系统降低能耗是有利的；
Suction gas pressure goes up as the compressor run at the lower speed in the lower burthen, and this is beneficial to lower systems energy-consume.
在负荷较小时，压缩机采用低速运转，吸气压力升高，这对系统降低能耗是有利的；
Suction gas pressure goes up as the compressor run at the lower speed in the lower burthen, and this is beneficial to lower systems energy-consume.
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