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The special tribo-electdc tester with high sliding speed and electric current was developed,which mail working parameters are, current density up to 2.5 A/mm~2, the sliding speed 100 m/s,the load over 500 N (3.2 MPa) and the pulsant strike pressure within 20 N. This testersuccessfully simulates the tribological and electric properties of strip materials. 2, By using the above tester, study on tdbological properties and carrying currentperformances of copper-base powder metallurgy material and metal impregnation carbonmaterial are carded out.

本论文开展的主要研究内容和所取得的成果如下： 1、首次开发了大电流、高速度和重载荷的载流摩擦磨损专用试验机，能够稳定提供恒定交流电流密度2.5 A／mm~2，相对滑动速度100 m／s(12000 r／min)，载荷可达500 N(3.2MPa)，脉动冲击载荷可达20 N，为研究提速接触网和滑板的高速载流摩擦学特性及其机理，以及开发新型高耐磨性、高载流性能滑板材料提供了先进可靠的试验手段(该机已获得一项实用新型专利，ZL 2006 2 0096036.5)。

The square wave or corrected sine wave auto inverters have many limitations. When supplying to inductive load (such as electric fan, electric drill etc.), a square wave or corrected sine wave auto inverter produces too much harmonic current which makes the load seriously heated and even damaged. When supplying to capacitive load or rectificative load such as notebook PC, mobile phone charger etc.

方波或修正正弦波电源有很多局限性：在为感性负载供电时产生大量谐波电流，导致电器严重发热，甚至损坏；为容性或整流性负载（笔记本电脑、手机充电器等）供电时产生严重的脉冲电流，严重时可能导致电器损坏。

In the design of the road test, a reflectional infrared sensors is used to detect the black line on the road to judge the trolley's position; on trolley's speed controlling, the control system uses PWM technology to control the rotational speed of electric motors, and complete the speed real-time control to electric cars in d

在路面检测设计中，小车采用反射式红外传感器来检测其行驶路面上的黑线，以判断小车行驶的位置；在控制小车行驶速度上，系统利用PWM技术控制电动机的转速，通过程序完成对电动小汽车在不同路段的行驶速度实时控制；最后采用双电源供电，用以保证系统的运行更加稳定，可靠。

According to organization economics, electric power industry mechanism reformation is a reforger process of electric power industry organization.

根据组织经济学，电力产业体制改革实际上就是电力产业组织再造过程，是电力产业组织的重大变革过程。

The carbonyl group tend to align in the direction of the electric field of the polarized laser, resultantly, the molecular chain were found to tend to align perpendicular to the electric field of the polarized laser, that is to say, the molecular chain inclined to align perpendicular to the direction of LIPSS.

聚酰亚胺分子中的羰基在偏振激光电场的作用下，沿电场方向取向排列，而使整个分子链沿垂直于电场的方向取向排列。

2Soil column leachate experiment shows, soil texture and soil section form are the main factors affecting the nitrate leaching; in soil organic fertilizer produce a nitrate leaching process, during five-month experiment, nitrate content has be increasing in leakage solution, organic fertilizer applying decrease the pH and increase the electric conduction of leakage solution, there is positive action between nitrate content in leakage solution and electric conduction, which shows that nitrate-N accumulation during organic fertilizer applying is one of the main factors for soil salification; for decrease the leaching of the nitrate-N in soil, in sandy moisture soil the best amount of organic fertilizer should be 7.5～ 15 t·hm~(-2), in Loamy moisture

在小麦-玉米轮作体系上投入化肥氮300kg·hm~(-2)N和有机肥22.3t·hm~(-2)折N261.2kg·hm~(-2，能使农田氮素收支达到平衡，在兼顾环境效益的基础上获得了较高的产量效益。并通过肥料效应函数和硝态氮累积效应函数进一步预测最佳施肥组合，即化肥氮施用量为N226.5kg·hm~(-2)，有机肥用量为39.9t·hm~(-2)折N466.8kg·hm~(-2，其中小麦季施化肥氮105.85kg·hm~(-2)N、有机肥30t·hm~(-2)折N351kg·hm~(-2，玉米季施化肥氮120kg·hm~(-2)N，有机肥9.9t·hm~(-2)折N115.8kg·hm~(-2。同时，磷素平衡分析表明，在施用有机肥的基础之上，化学磷肥的施用量应适量的减少或不施。

From these dynamic solutions, frequency and mode shapes of sectorial plate and sectorial annular plate under boundary conditions of GSS and GRS are derived. The three-dimensional exact solutions of the displacement, electric potential, magnetic potential, stress, electric displacement and magnetic induction of equilibrium problems are also obtained.

由动力学的一般解，导出了扇形板和扇形环板在广义弹性简支和广义刚性滑动边界条件下自由振动的频率方程和振型；并得到了平衡问题的扇形板和扇形环板在两种边界条件下的位移、电势和磁势，应力、电位移和磁感应强度的三维精确解。

Of electric charge or of electric-charge carriers, as in a semiconducting device.

电极电荷或带电荷载流子的收集体或发送体，如在一半导体装置中的

This is the traditional electric water heaters plants to Kangquan, Jinyou brands represented; There are also other electrical appliance and gas water heaters manufacturers expand their business and production of electric water heaters, including Haier, Little Duck, Wanjiayue, Elisidu, sithe Long and brands.

这既有传统的电热水器厂，以康泉、金友品牌为代表；也有其他家电和燃气热水器厂家拓展业务而生产电热水器的，其中有海尔、小鸭、万家乐、阿里斯顿、赛德龙等品牌。

HongKong HuanSheng Industrial Co.,Ltd.next severalcompanies specializing production of varieties as KCD Rocker switch,ACsocker,Indicating lamp,Push Switch,RCA socket socket, DS terminal socket ,phone jacks,DC power socker,Micr Switch,tact switch,toggle switch ,Leaf switch,Din connectors,Models the shell Connectors ,EJ phone jack,S Jackseries or other product, the video compact disk machine, the computer, the air conditioning, the refrigerator, the sound, the multimedia product, the desklamp ,Electric carand, Automobile fitting so on the domestic electric appliances.

香港环盛实业有限公司属下几家公司（深圳环盛科技、乐清市环盛电子）专业生产KCD系列船形开关、AC插座、指示灯、按键开关、RCA型同芯插座、DS限位开关、DC电源插座、外接式插座、微动开关、拨动开关、轻触开关、叶片开关、端子、塑壳连接器、EJ插座、S端子等几十种系列产品，广泛用于电视机、手机、充气机、礼品、车载音响、数码相册、移动硬盘、电动自行车、电动工具开关、电焊机、电脑、空调、冰箱、多媒体产品、台灯、汽车配件等家用电器。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。