through the pressure switch
通过压力开关
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The exhaust noise generated by a pressure switch is silenced by the exhaust silencer through the pipeline and then diffused in the big cavity, and the noise is significantly reduced.
压力开关产生的排气噪音通过管路到排气消声器消音再到一个大腔体中扩散，使噪音明显降低。
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