动电的

Analyzed the condition of coal-mine explosive malfunction in China, and researched the passivation mechanism of coal-mining emulsion explosive and delay electric blasting cap, and discussed the avenue of researching the permitted emulsion explosive with the function of shock resistance.

分析了我国煤矿的爆破异常情况，研究了煤矿许用乳化炸药和毫秒延期电雷管的动压特性，对爆破异常机理进行了较全面的阐述，并通过耐压型乳化炸药的研制探讨了预防和减少爆破异常现象的技术途径。

For a fixed particle volume, the influences of the key parameters of the system under consideration, including the thickness of double layer, the aspect ratio of a particle, the relative size of a cylindrical pore, and the charged conditions on the particle and pore surfaces, on the on the mobility of the particle are discussed.

首先，我们先固定所有粒子的体积大小，然后再改变不同的电双层厚度、粒子与边界本身带电与否、管径的大小以及粒子或边界本身带电情形的不同，分别将这些因素作用在不同椭球粒子上，并根据其相对所产生的泳动率之大小做讨论。

The high-power system including main circuit, the charging and discharging circuit of synthetic circuit test system, and the principle of charging and discharging for current supply using electrolytic capacitor is presented. At the aspect of circuit breaker control, the advanced permanent magnetic actuator is used and analyzed in this paper, including the precision computation and using in synthetic circuit. The trigger circuit of voltage supply is designed, and the intelligent control is used to trigger the igniting gap. And the integraph based Rogowski coil is designed and employed the intelligent detection of breaking current.

强电系统介绍了合成回路试验系统的主电路及其充放电电路，讲述了电流源采用电解电容器的充放电原理；断路器控制方面，采用当前比较先进的永磁操动机构，并对永磁机构的原理、精度计算和在合成回路中的应用做了详细地分析；设计并制作了电压源点火回路，对球隙点火进行智能控制；在智能检测开断电流方面，设计并制作了与Rogowski线圈相配合的积分器。

The invention is directed to a dry shaving apparatus with an electric drive mechanism provided in a housing (1) and a housing part in which a removable frame equipped with at least one cutter element is held by at least one detent mechanism, wherein upon release of the removable frame by the detent mechanism the removable frame is movably held in a holding position by a retaining device, wherein in said holding position provision is made for at least one distance (W, W1) between a wall of the removable frame and a wall of the housing part, and the removable frame is adapted to be set in motion by the drive mechanism.

本发明涉及一种干式剃须装置具有：一个设在壳(1)中的电驱动机构和一个壳部，其中可拆卸的刀框由至少一个插销机构固定，可拆卸的刀框包含至少一个刃具，其特征在于，在插销机构将可拆卸的刀框释放时可拆卸的刀框由一个固定装置可动地固定在固定位置，在所述的固定位置中，在可拆卸的刀框的一个壁和壳部一个壁之间形成至少一个距离(W1、W2)，并且可拆卸的刀框能通过驱动机构置于运动中。

It can fulfill automatic control on swash plate of

它通过对发动机转速信号、大气总温信号的处理，解算出斜板的理论位置，与斜板的位置传感器信号进行比较，其差值作为控制信号经放大后控制电液伺服阀带动作动筒，使斜板向减小差值的方向运动，从而实现对飞机进气道斜板的自动控制。在这一系统中

The general platform structure of hardware and software of the SCS-500E security and stability control system is introduced.Some techniques,such as,the characteristics of SCS-500E—high-speed communication based on FPGA,criterion of non-fault line tripping based on local electrical measurement...

介绍了该平台的系统构架、硬件组成和软件结构；对其基于现场可编程门阵列的高速同步串行通信和基于本地电气量的无故障跳闸新判据及定值映射管理等特点做了阐述；对SCS-500E安全稳定控制平台针对国家特高压线路示范试验工程进行的动模试验和数字仿真试验进行了说明；还介绍了该平台的工程应用情况。

Aiming at T-base diamond lathe, author use both on-line and off-line to measure the error vector of lathe workspace, and acquire good network train samples, then build two-dimensional error compensation model of lathe workspace with BP neural network and fuzzy neural network, at last build contour error compensation control system.

在分析国内外数控机床伺服闭环系统的发展现状及局限性的基础上，利用原数控系统和所研制的二维压电陶瓷微动刀架，研制了独立于原数控系统的超精密闭环控制系统。

The main principle of the DCcontactor:The electromagnetism coil switches on electricity thetitle iron to match with the iron heart on,the suction of theelectromagnetism system overcomes the counterforce of the springarouses the action of the contact, the main electric circuitconnected;The electromagnetism coil cuts the power the counterforceof the spring arouses the title iron from move to open, the headcontact breaks to open the output electricity arc give or get anelectric shock in drive to arc-extinct-chamber and made longer,thestrong cooling dissociates and put out,the main electric circuitcuts off.

接触器的主要原理：电磁线圈通电，衔铁和铁心吸合，电磁系统的吸力克服弹簧的反作用力带动动触头与静触头接触，主电路接通；电磁线圈断电，弹簧的反作用力带动衔铁和动触头弹开，触头断开产生的电弧在灭弧室中受到磁吹灭弧和电动力驱动被拉长，并强烈冷却去游离而熄灭，主电路切断。

The electrohydraulic servo system is a key part of hydroturbine governor. Whether it's configuration and control means is reasonable or not directly affects economical benefit and the safety of the equipment of the hydropower station.

电液随动系统是调速器的关键部分，它的结构及其控制方式的合理与否直接影响着电站的经济效益，关系着电站设备的运行安全。

Based on the equations, the position and attitude of micro flying robot with flapping wings can be controlled.For the rigid structure wing, a double rocker mechanism typical of two DOFs is designed, which is actuated by two PZTs. The mechanism can actuate the rigid wing to realize two DOFs movements. This mechanism has many characteristics, simple instructure, light in weight, reliable in movement, large in range, easy in drive and convenience in control.

设计了一个采用压电双晶片驱动的两自由度的双摇杆拍翅机构，该机构可以驱动刚性翅实现两自由度的拍翅运动，具有：结构简单、重量轻、动作可靠、拍动幅度大、驱动容易和控制方便等特点，适用于微型拍翅式飞行机器人的拍翅系统。

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。