Direct-acting reducing valve 直接作用式减压阀 Pilot-operated reducing valve 先导式液压阀 Diaphragm reducing valve 薄膜式减压阀 ..
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... 直接作用式关压阀：direct-acting reducing valve 先导式减压阀：pilot-operated reducing valve 反向作用式减压阀：reverse acting reducing valve ...
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... 先导式安全阀 Pilot operated safety valve 先导式 液压阀 Pilot-operated reducing valve 相对静偏差 Relative static characteristics derivation ...
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