电的

Mathematics model of dielectric under uniform electric field is built up, and total current is separated into three parts such as conductive current, instantaneous current and relaxation polarization current, then polarization and depolarization of linear and non-linear dielectric are simulated under step excitation, the results show that nonlinearity of non-linear conductivity is reflected by measuring surface potential attenuation during the process of self-discharge of non-linear dielectric.

论文首先对处于均匀电场下的电介质进行电路建模，把电介质的总电流分为电导电流、位移极化电流和松弛极化电流三部分来分析，然后以此为基础利用Matlab软件中的Simulink平台对直流阶跃激励下线性和非线性绝缘介质的极化和退极化过程进行了仿真，结果表明可以通过测试非线性绝缘介质自放电过程的表面电位衰减来反映其非线性电导的非线性程度信息。

Methods: One hundred and fourteen operations were performed for BPH patients, including transurethral resection/vapor of the prostate, inguinal herniorrhaphy, internal urethrotomy, transurethral resection of bladder tumor or vesical litholapaxy, and the data were reviewed.

对114例合并有腹股沟疝、尿道狭窄、膀胱肿瘤或膀胱结石的BPH患者在行经尿道前列腺电切／汽化术时，同期行腹股沟疝修补术、尿道内切开术、经尿道膀胱肿瘤电切术或膀胱取石术。

Both the underpotential-coverage and the underpotential-electrosorption valency relationships were analyzed, and the interactional properties between the deposit and substrate were obtained.

据此， 分析了单原子层覆盖度以及电吸附价与欠电势之间的相互关系，获得了沉积物与衬底之间干涉特性。

Barium titanate(BaTiO_3) has been broadly used as the raw material for heat variable resistor,multi-layer ceramic capacitors, electro-optic device and dynamic random accessmemories.

钛酸钡(BaTiO_3)是性能优异的强介电和铁电材料，被广泛应用于制造热敏电阻器、多层陶瓷电容器、电光器件和DRAM器件。

Current density vector, joule heat and Lorentz force were mainly localized in region where the velocity of steel flow was high; joule heat produced by induce current has limited influence on steel flow, could be ignored.

结果表明：电磁力、电流密度矢量、焦耳热主要分布在钢液速度较大区域，电磁力明显改变了结晶器内钢液流场，感应电流产生的焦耳热对钢液温度场影响很有限，可忽略。

The man in the photo is playing a vibraphone. Do you know what that is?

照片中的男人正在弹奏电颤琴，您知道什么是电颤琴吗？

And by using the initial conditions as well as the end conditions, the dynamic problem is then transferred to a second kind Volterra integral equation about the function of the axial strain with respect to time which can also be solved successfully by the interpolation method. For piezoelectric and pyroelectric hollow cylinders, by following the solving procedure for elastic hollow cylinder and by using the electric boundary conditions, the dynamic problems are transferred to two Volterra integral equations about two functions of time, one is axial strain and the other is related to electric displacement, which can also be solved efficiently and quickly by employing interpolation method. The elastodynamic solutions of hollow spheres, which are made of elastic, piezoelectric and pyroelectric materials, respectively, for spherically symmetric problems are also obtained.

对于弹性空心圆柱，通过引入一特定函数将非齐次边界条件化为齐次边界条件，然后利用正交展开技术，导出关于时间函数的方程，再结合初始条件和端部边界条件，将原问题转化为关于一个时间函数的第二类Volterra积分方程，运用插值法可给出此积分方程的解；对于压电和热释电空心圆柱，利用求解弹性空心圆柱相似的方法，再结合电学边界条件，原问题转化为关于两个时间函数（轴向应变和与电位移有关的函数）的第二类Volterra积分方程组，同样可用插值法来构造相应的递推公式高效地求解此积分方程组。

Business Scope 1, battery machinery: sealing machine, high speed sealing machine, injection machine, zinc cream machine, spray mixer, divide the paper machine, powder boxes, and examination of motor, electric wash drawing, dry electric pull, tableting machines, granulation machines, automatic combination machine, roll machine, stamp-pad ink machine, glue water machine, pressure machine, pulling machine, the machine and so on, battery accessories to the workshop, the battery of Health workshop planning and construction, automated battery production line design and manufacturing.

电池机械：封口机、高速封口机、注液机、锌膏机、喷液搅拌机、隔膜纸机、粉箱、验电机、洗电拉、干电拉、压片机、造粒机、自动组合机、卷片机、印油机、涂胶水机、测压机、拉浆机、开片机等，电池配件车间、电池生车间的规划与建设，自动化电池生产线设计及制造。

Of or relating to or used in the production of electricity by waterpower.

由水力产生电，与之有关，或使用这样产生的电。

Weak system integration business unit: professional undertaking weak systems integration projects, computer hardware and software in the research, development and integration.

弱电系统集成事业部：专业承接弱电系统集成项目，从事计算机软硬件的研究、开发与集成。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐