电流的

The post-arc fulgurite current of low voltage current limiting fuse is studied. It is show that post-arc fulgurite current varies with breaking current.

对低压限流熔断器中的弧后残躯电流进行了研究，得出弧后残躯电流随开断电流大小变化而变化。

The Electrochemical measurement system used to perform DPSV measurement is constructed with two parts, a low-current measurement system consists of low input bias current operational amplifier and a high resolution SAR ADC and a potentialstat consists of high resolution DAC and high current buffer amplifier.

对于差分脉冲伏安溶出测量，我们使用高精度连续逼近寄存器型ADC和低偏置电流运放构成微电流采样系统；使用高精度DAC和高速大电流缓冲放大器构成了恒电位计，在微控制器的控制下组成电化学测量系统。

In the transistor, the output current depends on the input current, hence it is a current-operated device.

在晶体管中，输出电流依赖于输入的电流，因此它是一个电流控制器件。

Finally, according to voltage with compute the electric current choose once equipments, including circuit breaker, insulate the switch, fuse, voltage transformer, current transformer, lightning arrester, busbar and electric cable and so on, then according to compute the result of the short-circuit electric current with designs the request to once equipments proceed check to break the ability of flowing and stable degrees of short circuit about moving and hot.

最后，根据电压和计算电流选择一次设备，包括断路器、隔离开关、熔断器、电压互感器、电流互感器、避雷器、母线和电缆等，再根据短路电流计算结果和设计要求对一次设备进行断流能力和短路动稳定度、热稳定度的校验。

Impulse current: Current to be used in the test for surge current resistibility of optical fibre cables.

脉冲电流测试光缆对浪涌电流。耐受能力时使用的电流。

First of all the differences between photoelectric current / voltage transformer elements in HV and UHV switchgear assembly and independent electric device of conventional open porcelain knob photoelectric current / voltage transformer are described in this paper,then the photoelectric current / voltage transformer elements in HV and UHV switchgear assembly are classified,and the working principle and technical performances of photoelectric current / voltage transformer elements in 500 kV switchgear assembly abroad are introduced in detail.

首先论述了高压和超高压组合电器中光电式电流/电压互感器元件和常规敞开瓷柱式光电电流/电压互感器独立电气设备在概念上的区别，然后对组合电器中光电式电流/电压互感器元件进行了分类。并详细介绍了国外550kV 超高压组合电器中光电式电流/电压互感器元件的工作原理及技术特性。对 ABB 公司、阿尔斯通公司、三菱公司、西门子公司等生产的245～550kV 户外超高压新型组合电器进行了较详尽地介绍和分析，主要是：①基本结构及特点；②主要技术参数

After analyzing and comparing two kinds of current control methods of three-phase VSR: indirect current control and direct current control, the author employs the latter as main control scheme, which is to control the phase and amplitude of ac-side current directly, by using dual closed-loop control scheme, through sampling currents of phase a and b and converting them by 3s/2r to get active component and reactive component of ac-side current.

分析比较了三相电压型PWM整流器的两种电流控制方法：间接电流控制和直接电流控制。

It is shown that under the action of the shock, the region I current moves towards the midnight, accompanied by a successive occurrence of two FAC structures: an anomalous FAC pair of opposite direction to the region I current and a new region I current of the same direction.

模拟结果表明，在激波的作用下，电离层Ⅰ区电流系统向子夜方向运动，在向阳侧相继出现与原Ⅰ区电流反向的异常场向电流对和同向的新生Ⅰ区电流对。

Results In the pyramidal neurons voltage-clamped at -60 mV, GABA evoked a transmembrane inward current and the peak amplitude of the current increased sigmoidally with increasing doses of GABA applied. Co-application of lidocaine resulted in a decline of IGABA and the IGABA was 4.05mmol/L.10mmol/L lidocaine resulted in right shift of concentration-response curve arid not only EC50 changing from 7.72mmol/L to 17.2mmol/L but also the maximal current unable to reach the top level.

结果 将钳制电位固定在－60mV，GABA以剂量依赖性方式诱导出内向电流；利多卡因明显抑制GABA诱导的Cl电流I(下标 GABA，50%抑制浓度(IC50)为4.05mmol/L，10mm/L可使GABA浓度效应曲线明显右移，50%有效浓度(EQ50)由7.72mmol/L增加到17.2mmol/L，且最大电流明显降低。

This paper makes analysis of the current change in CT when the neutral wire break in the CT imperfect star connection and figures out the influence on the measurement and the relay protection in the electrical system.

通过对电流互感器不完全星形接线中性线断线后电流互感器二次侧回路电流变化的分析，阐述了对高压系统二次回路的计量仪表和电流保护的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。