电流

To reverse the direction of(an alternating electric current) each half-cycle to produce a unidirectional current.

变换电流方向颠倒每一半周方向，以产生单方向性电流王子接收教训。

In this paper, thermodynamics of irreversible processes has been applied for investigating the plasma in a uniform magnetic field.

本文利用不可逆过程热力学讨论了在均匀磁场作用下的等离子体，得到了电流方程并指出了磁场对电流的影响。

At the end of this dissertation, the experiment results of the system are provided, and these results show that the system can obtain well output current following performance and unit power factor. And in the experiment process, the voltage and current do not shift, and the process of lock-phase is very quick and smooth.

本文的最后给出了系统实验波形，实验结果表明：系统实现了较好的输出电流跟踪性能，输出功率因数接近1，而且在实验过程中，电流与电压不发生漂移，相位锁定过程平稳，速度快。

C. discharge setup, vacuum ultraviolet spectral radiations in range of 120-200nm for the He H2 and N2 gases have been investigated. The relative radiation intensity as a function of the discharge current (100-600mA) and the influence of the gas pressure on it have been shown.

研究了He、H_2、N_2在120nm～20Onm范围内该装置的真空紫外辐射特性，获得了100～600mA电流范围内的辐射强度与放电电流的关系，以及充气气压变化对它的影响。

The cathode phenomena in hollow cathode arc discharge in vacuum wereinvestigated systematically. The influence of welding parameters on active zone ofhollow cathode , arc appearance and voltage-ampere curve was investigated.

小电流的发散态电弧能量密度低，柔性大，可作为局部加热热源进行真空钎焊；大电流的可作为理想的熔焊热源，进行各种难熔易氧化金属在真空条件下的高质量焊接。

The characteristic of engine working at different mounting way and different environment is analyzed. Selecting pump pressure, speed difference and its variance ratio as input, and current of pump power control and pressure difference control as output, fuzzy control is adopted to improve the power matching and energy saving control method.

分析了在不同安装方式和不同环境下发动机的工作特性，以液压泵的压力，转速差和转速差的变化率作为输入，泵功率控制电流和负载压差控制电流作为输出，采用模糊控制对动力系统的匹配与节能控制方法进行了优化。

As to concrete treating method, the thesis adds the components in third dimension to the original 2D MHD code, and inward flows are embedded along the side of the current sheet, through changes of certain flow's scale, its distance to the current sheet, the viscosity coefficient and the resistivity in the plasma, the magnetic field figure, the velocity vector figure and the density distribution figure with different situations would be showed and observed, the reconnection growth rate figure is to be presented also, and the physical explanation involved will be made consequently.

在具体的处理方法上，文章在原有二维MHD流体理论基础上加入第三方向的分量，并且在电流片两侧加入入流扰动，通过改变其大小，距离电流片的位置，等离子体中的粘滞系数和等离子体电阻率，从而观察不同扰动情况下磁场重联的磁场位形、流场位形或者密度分布，绘制出磁场重联增长率在不同入流扰动下的图像，并分析其中的物理过程。

According to the results of H. Vogt about the relationship between current density and cathode potential, the cathode current density of 3000A/m〓 is determined.

根据H.Vogt对电流密度和阴极电位关系的研究结果，选择电沉积铜的阴极电流密度为3000A／m〓。

A given type of relay element can usually be wound for a wide range of setting currents; the coil will have an impedance which is inversely proportional to the square of the setting current value, so that the volt-ampere product at any setting is constant.

一个定型的继电器元件通常根据整定电流可大范围变化来绕制的，线圈阻抗与电流整定值的平方成正比，因此在任一整定值下伏安数是恒定的。

The voltage ratio of the capacitive voltage divider was determined to be 418.5 with an accuracy of 4.6% and the resistance of the stainless steel film 1.43 mΩ with an accuracy of 5.1%.

1引言在脉冲功率技术中，脉冲高电压和大电流是十分重要的电气参数，要求测量得到的电压和电流波形真实准确。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。