... valve element position 阀芯位置 valve spool position 滑阀位置 control valve stem position 控制阀杆位置 ...
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The resulting differential pressure is applied to the ends of the spool valve, raising it from its spring-centered null position.
结果导致滑阀端部产生差压并将其自弹簧中心电气零位提升。？
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