pilot operated compound-relief valve的意思|示意
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先导式复合溢流阀
pilot operated compound-relief valve的网络常见释义
先导式溢流阀 ...式卸压阀 pilot-operated relief valve 导阀控制的安全阀 ; 液压控制溢流阀 pilot operated compound-relief valve 先导式溢流阀 ..