At the same time a automatic switch design for feed-water modulate valves is finished .

同时，对给水控制的经济性进行的分析，提出了自己思考的改进办法，并设计了给水调节 阀的自动 切换回路。

The variable geometry exhaust manifold ( VGEM ) turbocharging system can realize the switch between two charging modes by the controllable valves .

可变几何排气管增压系统是利用排气管中的可控 阀门来实现增压方式的 转换，控制结构简单。

The composite switch mechanism of dual slots valves

双轨道 式 阀门复合 启 闭结构

The system uses distributed power supply system include switch power supply and analog power supply analog power is mainly responsible for sensor signal acquisition switching power is responsible for industrial computer reversing valves and injection pump .

系统采用了分布式的电源供电系统，由 开关电源和模拟电源组成，模拟电源主要负责为传感器信号采集电路供电，开关电源为工控机、换向 阀和注射泵供电。

The vacuum micro-tool consists of a venturi jet pump a linear pressure regulation valve two switch valves and a glass pipette suited for micro-operation .

真空微夹由真空喷射泵、线性压力调节阀、电磁 开关阀以及满足尺寸和形状要求玻璃吸管组成。

The control point can be analog signals such as temperature pressure and humidity or switch signals for electromagnetic valves and motors .

各CAN节点协同工作，执行对温度、压力、湿度等模拟量的采集以及电磁 阀、电机等 开关量的控制和检测。

Its ' control loop has two high speed on-off valves and a switch valve . The two on-off valves control the hydraulic cylinder motion the valve 's manual button supply a method of manual handle .

该液压系统由两个高速球阀与一个电磁 换向阀 组成控制同路，两个 球阀控制接力器的位移，其上的手动按钮作为手动操作；

The technical route of experiment and research was introduced in the influence of liquid impedance and capacitance on switch valves ' flow characteristic project and the design outlines and calculation methods of liquid impedance and capacitance for experiment .

本文介绍了液阻、液容对 开关阀 组流量特性的影响项目中实验研究的液压系统工作原理，说明了用于实验的液阻、液容件的设计要点和计算方法。

In this paper a pneumatic actuator position servo system is described which controlled by a five-point switch PWM control method using high-speed switching valves .

本文使用一种五点 开关PWM控制算法对高速 开关阀控气动执行器进行位置伺服控制。

Adopting CPLD to switch valves and pumps is easy stabile and flexible .

采用CPLD实现系统中 电磁 阀和蠕动泵的 开关控制，具有结构简单、可靠性高、灵活性强的特点。

This high-voltage presence indicating device without external power supply not only reflects the charged status of circuit but also could be coordinated with electromagnetic locks effectively so that electrical operations such as mandatory locking switch handles and valves can be achieved .

该高压带电显示装置无需外接电源，不仅可以反映回路的带电状况，而且还能与电磁锁实现有效地配合，实现强制闭锁 开关手柄、 阀门等电气操作。

After the equilibrium of the adsorbed phase and the gas phase had arrived in the adsorption system these components were injected into the analysis system with the carrier gas and were determined respectively by turning the switch valves .

通过各种 阀门 的 转换，可以分别测得吸附到达平衡时，吸附相和气相中各组分的吸附量和蒸气压。

A type of dual slots helix hoisting composite valve switch mechanism which is suitable for ball valves butterfly valves and plug valves is introduced .

介绍了一种适用于 球阀、蝶阀和旋塞阀双轨道旋转和升降复合动作的 启闭结构。