compression volume ratio
... Compression Pressure Ratio 压缩压力比 compression volume ratio' 压缩体积比 Variable compression ratio 可变压缩比 ; 可变压缩比发动机 ...
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且尺寸体积远小于同流量的容积式压缩机，稳定性和压比也比同流量的条件下的叶轮式压气机有所提高。
But it has smaller volume than displacement compressor at the same mass flow rate; and higher pressure ratio and efficiency than impeller compressor.
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