hydraulic-brake operating valve 液力制动操纵阀
hydraulically balanced valve 液压[液力]平衡阀
hydraulically operated direction control valve 液压操纵的方向控制阀, 液动换向阀 hydrodynamic brake valve 液力制动阀 hydrostatic valve
静水压力阀; (鱼雷)水压仪;定深仪 idling control valve 空转控制阀 ileal valve 回肠瓣 后肠缢(昆虫
