它由定差减压阀，液动换向阀和简式节流阀三部分组成。
It is certainly worse by the pressure reducing valve , hydraulic throttle valve and the short form of three parts.
介绍了一种直动式电液数字伺服阀的结构原理及其控制方法。
The operation principle and control method of electro-hydraulic digital servo valve are first introduced.
在电液比例阀和电液伺服阀动特性测试中，高频动态流量的测量一直是一个难题。
The measurement of high frequency dynamical flow in dynamical test of electro-hydraulic proportional valve and electro-hydraulic servo valve is very difficult.
通过对一种动圈电液伺服阀的液压桥路和具体参数的设计，提高了这种伺服阀抗污染的能力。
This paper introduces the designing of a moving coil electrohydraulic servo valve which improve the ability of antipollution.
本文介绍一种成本低的动圈式高压电液伺服阀的静、动态特性的计算与分析。
This paper presents an analysis and methods of calculation for the static and dynamic characteristics of a low cost moving-coil high pressure type electrohydraulic servo valve.
电动或液动插板阀(又称镜子阀)是炼铁鼓风炉煤上呼吸道网的重要切断设施之一。
Electric or hydraulic flapper valve (also known as mirror valve) is the upper respiratory tract iron blast furnace coal facilities off one of the important network.
设计了一套专门用于控制多级节流管汇液动平板阀的控制系统，主要目的是为多级节流系统在压井过程中实现自动控制奠定基础。
A control system which USES to control the flat valve of multistage throttle is design in order to establish the foundation for automatic control of multistage throttle during press the well.
电动或液动插板阀通常与非金属密封蝶阀配系运用。
Electric or hydraulic flapper valves are usually equipped with non-metal sealing butterfly valve system to use.
气压液动。五通定向控制阀。第1部分：不带电连接器安装接口。
Pneumatic fluid power - Five-port directional control valves - Part 1: mounting interfaces without electrical connector.
气压液动。五通定向控制阀。第1部分：不带电连接器的安装接口。
Pneumatic fluid power - Five-port directional control valves - Part 1: mounting interfaces without electrical connector.
气压液动。五通方向控制阀。第2部分：任选电气连接器的安装接口面。
Pneumatic fluid power - Five-port directional control valves - Part 2 : mounting interface surfaces with optional electrical connector.
阀口压差的稳定是高精度液动测量的保证，因此深入研究了阀口压差控制技术。
Constant orifice differential pressure is the premise for high accuracy hydraulic measuring, so thorough analyse of orifice differential pressure control technology has been taken.
按动作原理分为手动节流阀和液动节流阀。
Points action principle divide into hand throttle and Hydraulic throttle.
四通 手动控制阀可用于所有气动或液动双作用缸体执行器。
Four-Way Diaphragm Pilot Valves are for use on all double-acting pneumatic cylinder actuators.
理论上，如果有实用的动态流量传感器，用一控制阀口开度的电液比例节流阀，再配以压力和流星传感器就可控制这两个县。因目前还没有实用的动?。
With this new concept, the electro-hydraulic proportional valve that can control only pressure or flow has multifunction to control both pressure and flow-Two appplication examples are also presented.
理论上，如果有实用的动态流量传感器，用一控制阀口开度的电液比例节流阀，再配以压力和流星传感器就可控制这两个县。因目前还没有实用的动?。
With this new concept, the electro-hydraulic proportional valve that can control only pressure or flow has multifunction to control both pressure and flow-Two appplication examples are also presented.
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