动电的

Piezo Actuators are key components of piezoelectric fuel injection systems in diesel and gasoline engines.

压电致动器是在柴油和汽油发动机中压电燃料注入系统的重要元件。

Electric hydraulic valve is equipped with type DYT electric hydraulic draw stem; it pushes the rocker to drive axle and plate and switch flow direction of medium and meets the requirement of working conditions.

电液动三，四通溜子，配用 DYT 型电液推杆，推动摇杆带动阀轴，分料板即可完成介质流向的切换，满足工况的需要。

High mechanical-electrical transformability and excellent controllability set ferroelectrics in the center-stage of functional materials.

铁电陶瓷已经被广泛应于致动器，微定位器等机敏器件。随着铁电陶瓷日益广泛的应用，其可靠性问题变得尤为突出与重要。

Company's main products: steel butterfly valves, valve dumping ash, steam injection metal hardware sealed off valve, soft sealed off valve, high-temperature steel butterfly valves and air hoist, the chute and transportation, such as permanent magnet Separators Series, manual, electric, pneumatic and hydraulic power, electricity, gas linked variety of ways, such as drive, widely used in building materials, cement, metallurgy, steel, glass, petrochemicals, light industry, electricity, food, timber , Tobacco, industrial gas, coking, and other industry supporting infrastructure projects, some products are exported overseas.

公司生产的主要产品有：钢制蝶阀、卸灰阀、蒸汽喷吹型金属硬密封蝶阀，软密封蝶阀、钢制高温蝶阀和空气提升机、输送斜槽和永磁除铁器等系列，手动、电动、气动、电液动、电、气联动等驱动方式一应俱全，广泛应用于建材、水泥、冶金、钢铁、玻璃、石化、轻工、电力、粮食、木材、烟草、工业燃气、焦化等行业基本建设工程的配套，部分产品远销海外。

Normally open solenoid valve, coil power after the due role of suction, dynamic core down to the Deputy valve valve plug depressed, GLOBE VALVE vice valve closed, the main valve valve cup pressure rise, when the pressure rose to a certain value, the main valve valve cup Like the upper and lower pressure, due to the role of the electromagnetic force, moving to promote the main valve core valve cup, the clamping main valve seat, the valve closed.

常开电磁阀，线圈通电后由于吸力作用，动铁芯下移，把副阀阀塞压下，副阀关闭，主阀阀杯内压力上升，当压力升到一定值时，主阀阀杯的上下压差一样，由于电磁力作用，动铁芯推动主阀阀杯下，压紧主阀阀座，阀门关闭。

Electric actuators is one of charactors of new type of the plane.

电力作动器是全电飞机最重要的特征之一。

Voltage Source and Current Source, Thevenin Theory, Trouble Shooting, Characteristic Curve of Diode, Diode Models, Rectifier Circuits, Input Filtering Capacitor, Voltage Multiplier Circuits, Limiter and Clipper Circuits, DC Clampers and Peak-to-peak Detectors, Zener Diode, Zener Diode Rectifier, Photoelectric Devices, Collector-Emitter Junction, Transistor Characteristics of common-emitter, Base Bias, LED Dirver, Establishing a Stable Q-point, PNP Transistor Biasing, Transistor Biasing, Coupling and By-Pass Capacitors, AC Emitter Resistance, Common-Emitter Amplifier, Other Common-Emitter Amplifiers, Cascaded Common-Emitter Amplifiers, AC Load Line, Emitter Follower, Class B Push-pull Amplifiers, JFET Characteristic Curve, JFET Biasing, JFET Amplifier, VMOS Circuit, Differential Amplifier, Operational Amplifier, Non-inverting Feedback, Negative Feedback.

电子学实验( S0704)(1，1)/应用电子学实验( S0472)(1，1)电压源和电流源、戴维宁定理、故障排除、二极体特性曲线、二极体近似模型、整流电路、电容-输入型滤波器、倍压电路、限制器电路和峰值检测电路、直流定位器与峰对峰检测器、齐纳二极体、齐纳二极体整流器、光电元件、集射极接面、集极特性曲线、基极偏压、LED驱动器、建立一个稳定的工作点 Q 、 PNP 电晶体偏压、电晶体偏压、耦合及旁路电容、交流射极电阻、共射极放大器、其他 CE 放大器、串接共射极放大器、交流负载线、射极随耦器、 B 类推挽式放大器、 JFET 特性曲线、 JFET 偏压、 JFET 放大器、 VMOS 电路、差动放大器、运算放大器、非反向电压回授、负回授。

This paper gives the methods and instances of development of the software for rapid design of high speed machine tool spindle.

在MATLAB平台上基于GUI开发一系列电主轴分析通用软件，用于分析主轴的临界转速、主振型、不平衡响应以及动、静刚度等主轴动特性参数。

A computer-controlled tool post system has been developed for turning non-rotationally symmet-ric surface.

文中提出了一种用微型计算机控制的车削非旋转对称曲面的电致伸缩刀架系统，该系统包括控制器、电源放大器、电致伸缩致动器及其位移放大机构。

An analysis of synopsis is given for the operating principle and structure features of UAV,as compared with the traditional hydraulic brake system.The electric actuator which is the key technique of the system is specially analysed and studied in detail,and the design and calculating method is presented.

与传统的液压刹车系统进行对比，简要分析了全电刹车系统的刹车原理和结构特点；特别针对全电刹车系统的关键技术即电作动机构进行深入的分析和研究，给出了相应的设计计算方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。