forward directional spool

hydraulically operated direction control valve

液压操纵的方向控制阀

steering control valve pressure loss characteristic

转向控制阀压力降特性

response curve of steering control valve

转向控制阀灵敏度特性

internal leakage in steering control valve

转向控制阀内泄漏量

A Research on Proportional Valve-based Pneumatic Positioning Control of Linear Actuator

基于比例方向阀的直线气缸位置控制研究

Study of Pneumatic Position Control System Based on Proportional Valve of Direction Type;

基于比例方向阀的气动位置控制系统控制策略的研究

Fluid leakage control one-way valves control the manner of oil and oil-leaking Type II species.

液控单向阀控制油的泄漏方式有内泄式和外泄式二种。

Effect of Geometry of Rotary Valve Orifice on Response Characteristics

转向控制阀阀口结构对灵敏度特性的影响

Research of proportional pressure control valves

比例压力控制阀的模糊控制方法研究

Discharging Mode Selection of Hydraulic One Way Valve Controlled Pressure-holding Circuit

液控单向阀保压回路的释压方式选择

pressure-gradient control valve

压差控制阀（优先阀）

pressure controlled valve

压力调节阀压力控制阀

Piezoelectric Hydroelectric Servo Valve and Its Control Method;

压电型电液伺服阀及其控制方法研究

Analysis of sequence valve control mode of 600MW supercritical steam turbine

600MW超临界汽轮机顺序阀控制方式优化

Research on NC Machining Process of Steering Brake Valve Body in SD7 Bulldozer;

关于SD7型推土机转向制动阀阀体的数控加工工艺研究

The hoisting mechanisms can be controled independently through the controlvalve.

主、副卷扬通过换向阀的控制，可单独操纵。

Quality Classification of Clamping Force Control Valve based on Support Vector Machine

基于支持向量机的夹紧力控制阀质量分类

Improved Design of Reversing Valve Based on Hardware Redundancy Fault-tolerant Control

基于硬件冗余容错控制的换向阀改进设计