“directional control valve”可以造什么句，directional control valve造句
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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.
Design and simulation of large flow rate directional control valve
Hydraulic fluid power — four-port modular stack valves and four-port directional control valves, sizes 02, 03 and 05 — Clamping dimensions.
