pressure-and-vacuum release valve的意思|示意
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呼吸阀
pressure-and-vacuum release valve的网络常见释义
压力和真空释放阀 压力接触：pressure contact 压力和真空释放阀：pressure-and-vacuum release valve 压力动作开关水流启动装置：pressure-operated switch waterflow initiating device ..
呼吸阀 ... pressure-actuated 压力驱动的 pressure-and-vacuum release valve 呼吸阀 pressure-balanced valve 压力平衡阀 ...