“directional control valve”簡單造句，directional control valve造句子

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.

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.