电动液压控制阀 meaning in English

electro-hydraulic control valve

Hydraulic fluid power . electrically modulated hydraulic control valves . part 1 : test methods for four - way directional flow control valves
液压流体动力.电动液压控制阀.第1部分:四路定向流量控制阀的试验方法
Hydraulic fluid power . electrically modulated hydraulic control valves . part 2 : test methods for three - way directional flow control valves
液压流体动力.电动液压控制阀.第2部分:三路定向流量控制阀的试验方法