查询词典 direct current

Along with of microprocessor of development, the urgent demand have to match with it mutually of connect the issue that ocular exterior measure the equipments directly, root for a living through applied personnel in technique in science, find out a kind of exits already of but the past was output the equipments by the tiny electric current, electric voltage that people neglect, namely the high man in Rogowski electric current spreads to feel machine with divide to press the machine, its output's is several 100 peaceful electric current s/ V electric voltage can control with tiny model protection directly the equipments pick up a people, satisfying the request that protection control measure, and basic dissolves traditional electromagnetism type the electric current, electric voltage feels with each other saturated weakness in machine.

随着微机的发展，迫切要求有配合它的相互连接的问题，眼球的外部测量设备直接，根为口奔驰，通过应用型人才，在技术科学，找到了一种已经退出的，但过去仅仅是输出设备是由微小的电流，电压，人们忽视，即高文在罗柯夫斯基电流差突然觉得机器与隔膜，迫使机，其输出的是几个100和平电流s音频/视频电电压可控制与微小模型直接保护的设备，接了一个人，满足了要求保护控制措施，并基本溶化传统的电磁式电流，电压觉得与对方饱和疲软机器。

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。

For vortex-liquid phase,the E-J relation could be described according to the Kim-Anderson model:U=U0(1-J/JC).While for vortex-glass phase,the electric field decays verydramatically with decreasing current density,so it is difficult to be observed with theinstrument has limited precision.In the intermediate current region,the E-Jrelations of the both phases could be fitted in terms of a phenomenological model:U=(U0/μ)[μ-1],it was concluded that the sign of μ-value changes fromnegative to positive when the temperature decreases lower than the glass-transitiontemperature Tg,meanwhile,the activation energy U enhances dramatically.Whilein the large current region,Zeldov's logarithmic model was suitable for fitthing theE-J curves of the both phase.Moreover,there was no abrupt change of U or thecharacteristic current density IC.However,the effective radius of vortex line variesremarkably around Tg.

对于涡旋液体相，小电流区的E-J关系可以用计及反跳的Kim-Anderson模型U＝U0(1-J/JC)来描述，而对于涡旋玻璃相，小电流区的电场随电流密度减小而迅速衰减，以致很快脱离了实验测量精度的范围；在中等电流区，两相的E-J关系可以用共同的唯象过渡模型U＝(U0/μ)[μ-1]来拟合，得到在玻璃转变温度Tg两侧μ值由正到负的变化，同时激活能U在Tg以下迅速升高；在较高电流区，两相的E-J关系可以很好的用Zeldov对数模型来描述，拟合结果表明U在Tg两侧的趋势没有明显变化，但是涡旋线的有效半径发生了显著变化。

With this important concept which the reads of wattmeter was equal to the product of the effective value of the voltage across the potential coil, the effective value of the current flowing in the current coil, and the cosine of the phase-angle between the current and the voltage. It was speciled with some examples to determine the phase-angle measured between line voltage, line current in different connection.

围绕有功功率表的读数等于该功率表电压线圈所接电压的有效值、电流线圈所通过的电流的有效值以及电压与电流相位差余弦的乘积这一重要的概念，用实例说明在不同的接线情况下如何利用各电量的相量关系来确定所测的线电压、线电流之间的相位差角。

A A Class 2 circuit as defined in 3.6; b A limited-voltage/current circuit as defined in 3.32; or c An internal circuit not conductively connected to another source of voltage or current (the voltage or current is received through the receptacle or connector), and the circuit and its components comply with applicable requirements of this standard 28 舞台灯标准 for separation from other than Class 2 and limited-voltage/current circuits.

a 二类电路详见3.6内容； b 限流/限压电路详见3.32或 c 内部电路与其它电压或电流不导电。电路和其元件符合分离不同于二类电路和限压/流电路标准的相关规定。

3 When evaporative cooling hydro-generator (generator/motor) is running under dissymmetric electric power, if current of any phase is not over rated current IN, and ratio between its negative sequence current weight I2 and rated current (pre-unit value) is not over 60%, it shall be working chronically.

5.2.6.3蒸发冷却水轮发电机在不对称电力系统运行时，如任一相电流不超过额定电流 IN，且其负序电流分量与额定电流之比不超过6％时，应能长期运行。

Compared with the current waveform of current regulator parameter unchanged based on linear modal,the overshoot and torque pulsant of current waveform which using current regulator parameter changed control scheme were smaller.

将测得的电流波形与基于线性模型的电流调节器控制下的电流波形比较，采用本文的控制方案测得的电流波形超调量小，转矩脉动小，控制效果良好。

It is 9.40%.In black current,the quantity of K,Na,Cu,Zn and Fe in natural black current is more than in saxifraga,but the quantity of Mn and Mg in black current is less than in saxifraga.In black current,the proportio...

黑加仑中 K，Na，Ca，Cu，Zn，Fe的含量比马林中的含量高，而 Mn，Mg元素的含量却比马林含量低；马林的维生素 C含量为 1 6.2 2 mg/g，黑加仑的含量为 1 0 8mg/g，黑加仑的氨基酸的总量为 1 。63 %，马林为 1 。1 4%。

In the environment where it is higher than thermodynamics zero degree, current pulse of faitness is produced by the movement electron in the resistance, it forms the noise current of resistance by addition, the higher the temperature in resistance is, the acuter the electron movement will be, the bigger the noise current will be, therefore the resistance of the thermal noise current is formed.

作者单位：（攀枝花学院电气信息工程学院，四川攀枝花 617000）摘要：在高于热力学零度的环境下，在电阻体内存在大量由运动电子而产生的微弱电流脉冲，经过迭加形成电阻的热噪声电流。

The results showed that the W content in the electrodeposits rose with the increasing of cathodic current density in the solution containing ammounium citrate as complexing agent,whereas the current efficiency remained approximately constant. When the current denisity was higher than 15 A/dm2, the W content in the alloy was not obviously changed, but the current efficiency remarkably decreased.

结果表明，在以柠檬酸铵为络合剂的镀液中，沉积层的W含量随电流密度的增大而增加但电流效率变化不大，当电流密度超过15A/dm2后，镀层的W含量不再发生明显的变化而电流效率却明显降低。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。