直流的

The simple solutions to the resembling balanced bridge problems;2. The method based on un balanced bridge and balance bridge principle to check direct-current system insulation situation at the same time was designed.

分析了采用常规平衡电桥原理的直流绝缘监察技术存在的问题，提出了采用不平衡与平衡电桥原理相结合来检测直流系统的绝缘状况，并给出了设计方法。

Then, after introducing the direct current sensitivity analysis method of general ATC, the direct current sensitivity analysis method of blind number ATC is studied, and some predigestion tips are also proposed to decrease computational effort.

以确定性可用输电能力的直流灵敏度分析法为基础，提出盲数ATC的直流灵敏度算法，并给出盲数运算的简化处理方法。

It is an unilateralism-transforming device, which can dispart high import voltage when inputting and outputting by tums, and outputs low voltage of direct current.

直流分压器是一个单向传输的器件，在输入、输出交替进行的条件下，它能将输入的高电压实行分压，以直流低电压输出。

And the drift velocity and the average energy of electron in air are computed. The results obtained in this work will be of great importance to the research of discharges in atmosphere including dielectric barrier discharge at atmospheric pressure.

通过模拟在大气常温下O_2、N_2及O_2／N_2的直流放电过程，所得结果对进一步了解大气常温下直流放电动力学的机理具有重要意义，对大气常温下介质阻挡放电研究也具有一定的参考价值。

Through the cold-state and simulation result, the special flow field of the burner can be obtained. It would be adjusting well when primary air nozzle adopting this form of inner-straight and outer-swirling. Inner straight can assure enough distance of jet, outer-swirling can entrain enough high temperature flue gas to burst into flame easily.

从冷态试验和数值模拟两方面可以得出这种燃烧器具有特殊的流场分布，一次风喷口采用这种外旋流内直流形式，兼有直流和旋流的两种特性，且具有很好的调节作用。

Thirdly, according to the equivalent circuit of the dc motor, the dynamical model is set up. Then, the dynamical model for the hybrid-driven press is developed using Lagrange's formulation. The system's equation is derived using expressions for the system energy function, its partial and time derivatives with respect to the defined generalized coordinates.

其次，根据直流电动机的等效电路模型，建立了直流电动机的动力学模型和位置负反馈控制模型；应用拉格朗日方程建立了混合驱动压力机机电系统的动力学模型。

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Traditional instrument in harmonic measurement is the transformer with circularity form core coil, but it is influenced by direct current and saturated, so it could not be used to measure direct harmonic current.

基于Rogowski 线圈的光电直流谐波电流测量系统解决了传统谐波电流测量受直流分量影响的难题，是集光纤技术、电子技术、激光技术于一体的新型谐波电流互感器。

Pole and slot and indicates the rule followed, depending on the structure features and performance characteristic of DC motor, and design 240w brush less DC motor based on armature reaction, and analyzes detailed Hoer position sensor and the control and drive of rush less DC motor.

而且针对直流电动机结构特点和工作性能，在电枢反应理论基础上设计出功率为240w的无刷直流电动机，并对霍尔位置传感器和无刷电动机的控制及驱动做了详细的分析。

Its output current can be continuously adjusted from zero to two hundred milliamperes and its stability reaches 1.5×10-5. The variation of the output current is less than 1μA when its operation time is longer than 12h. The modulation of frequency and intensity of optical wave in the laser interferometry can be achieved by the modulated current (100kHz～300kHz) input, whose modulation depth is continuously adjustable from zero to one hundred milliampere.

该电路的直流稳定度高达1.5×10-5，输出电流在0～200mA内连续可调，长时间工作（12h以上）电流变化小于1μA；在直流基础上注入100kHz～300kHz的调制电流，其调制深度为0～100mA连续可调，可实现在激光干涉测量中对光波频率和光波强度的调制。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。