先导控制的

The feedback of the closed loop control system is comprised of position sensor and system software.

在轻压下压力控制系统中，设计了使用先导式伺服比例阀作控制元件，以压力传感器作为反馈元件的闭环控制系统；在速度控制系统，用变频器作控制元件，设计了由位置传感器和系统软件构成的速度传感器作为反馈元件的闭环控制系统。

A new servovalve using a pressure control pilot state was introduced, which uses two spools instead of single spool in power magnifying stage.

介绍了一种新型的压力先导控制伺服阀，该阀的功率放大级采用双阀芯结构代替传统单阀芯结构。

Valve structure The cut-off valve with pilot valve with manual control and electric control of two types.

阀门结构带先导球阀的截止阀有手动控制和电动控制两种类型。

To obtain frequency is mixed take the intermittent breath with sky adjustable comparing, put forward a kind to be based on gas to accuse reversal valve switch from oscillation loop, accuse throttle of series connection of mouth of forerunner of a powerful person through be being enraged, tone sheds a powerful person to leave successively degree, and control aerates to forerunner mouth time, control gas to charge the reversal time of a powerful person then, produce different frequency and the intermittent breath that take sky comparing.

为获得频率和占空比可调的间歇气流，提出了一种基于气控换向阀切换的自振荡回路，通过在气控阀先导口串联节流阀，调节节流阀开度，而控制向先导口充气时间，进而控制气控阀的换向时间，产生不同频率和占空比的间歇气流。

The Ecoserial device is a digital economiser with differential pressure gauge able to pilot until 204 valves by connecting itself to a pneumatic driving module RPB with only two threads.

节能控制仪是一数码并内置有压差器的脉冲阀控制仪，最多能控制到204个脉冲阀，而这也只要用两根管子与 RPB 先导阀盒组串连起来就可以达到。

Model YTR150 rotary pile drill is another high performance rotary pile drill developed on the basis of model YTR230, featuring high torque, high maneuverability, low noise, low pollution, high operation efficiency and easy maintenance. The major specifications have reached those of foreign similar products. Model YTR150 rotary pile drill adopts hydraulic retractable crawler chassis made by Caterpillar. Its mast is lifted and lowered in full range with verticality automatically adjusted. Operating status parameters displayed by touch screen and monitor. Hydraulic pilot control is used for overall machine operations and load sensing hydraulic system and programmable logic controller are adopted to implement automation for easy and agile operation.

YTR150型旋挖钻机是在YTR230的基础上开发出来的又一种高性价比的旋挖钻机，具有大转矩、机动灵活、低污染、低噪声、施工效率高及维护方便等特点，主要性能参数达到国际同类产品水平YTR150型旋挖钻机采用了卡特彼勒生产的液压可伸缩式履带底盘，桅杆全程自动起落，自动调整桅杆垂直度，触摸屏和监控器可以直接显示工作状态的参数，整机操纵上采用液压先导控制，采用负荷传感液压系统和可编程控制实现自动化，使用方便灵活。

The pilot circuit of underground motor control systems in common use is analyzed and the problems existed in the circuits such as self starting and un intrinsically safety,are pointed out in this paper.

分析了目前矿井电动机控制系统先导电路的工作原理，指出了其存在自起动和非本质安全型等问题。

Integrated analysis on design theory and control mode of robot manipulators hydraulic driven system at home and abroad have been made in detail, then a new robot manipulators hydraulic driven system based on high-speed on-off valve pilot control is proposed in this paper.

本文在对国内外现有的机械臂液压驱动系统设计理论和控制方式进行了综合分析后，研究了基于高速开关阀先导控制的新型机械臂液压驱动系统。

The electrical control valve, manual control only of the pilot valve with 3 ~ 5V direct current machine drive can be.

对于电动控制的截止阀，只需将先导控制的手动球阀用3～5V直流电机驱动即可。

Solenoid valve is generally not as a direct cut-off valve, a few small-caliber and no instrument air source applications are also used as a cut-off valve.

先导式电磁阀作为控制阀的导向阀，用于控制活塞式执行机构控制阀的开闭或保位，也可作为控制系统的气路切换。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。