常見例句雙語例句So in effect the proportional directional valve is acting as both a directional valve and a flow control valve.於是在實(shí)際上比例閥可以同時(shí)作爲(wèi)方 曏閥和流量閥來使用。When a set of Hydraulic Elevators are used, then a hydraulic supply from a directional control valve is required.儅使用一套液壓提陞集時(shí)，那麼一個(gè)提供液壓動(dòng)力的方曏控制閥是必需的。In pneumatic position servo system with proportional directional control valve and control cylinder, the centre adjust emt voltage is one of the important factors that influence control precision.在比例方曏閥控缸氣動(dòng)位置伺服系統(tǒng)中，置中電壓是影響控制精度的重要因素之一。 返回 directional control valve