compressor

compressor
noun
  1. an instrument or device for compressing something
    压缩工具(或装置)
    ■a machine used to supply air or other gas at increased pressure, e.g. to power a gas turbine
    压缩机,压气机
    ■an electrical amplifier which reduces the dynamic range of a signal
    (减少信号范围的)压缩器
    ■a computer program which compresses data
    压缩程序
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