... 安全回路（security control） 阀压降valve pressure drop 鞍形接头、交叉接头：Cross-over(saddle) ...
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control valve pressure drop 调节问压差
uniform-pressure drop valve [机] 定差减压阀
bypass valve cracking pressure drop 旁通阀开启压降
uniform-pressure-drop valve 定差减压阀
uniform pressure drop valve 定差减压阀
pressure drop spill valve 压差回油阀门
As guided needle valve system is greater than the amount of water displacement, the main valve pressure drop in the control room.
由于导阀系统排水量大于针阀的进水量，主阀控制室压力下降。
He says a pressure valve on one of the rocket's fuel tanks showed a drop.
他说，火箭燃料箱的一个压力阀显示压力降低。
Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
旋启式止回阀压降最小，能够完全自动关闭，即在介质流动停止、重力和介质倒流的状态下自动关闭阀门。
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