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The paper introduces an improved harmonic and reactive current detecting method based on there-phase reactive current using instantaneous reactive power theory. By using matlab, simulation model is built, and the results show that this model can exactly detect harmonic and reactive current in time and it is feasible in DSP system.

本文在三相瞬时无功功率理论的基础提出了一种改进的单相无功电流检测算法，并建立了仿真模型，仿真结果表明：该算法可以及时、准确地检测出三相电路中的谐波电流和无功电流，同时也验证了此算法在DSP系统中的可行性。

The protection functions of relay don't be affected by current intensity of circuit or load, impulse current, imbalance current and load characteristic.

监视器的保护功能不受线路或负载的电流大小，冲击电流、不平衡电流和负载性质的影响。

A new method of obtaining secondary electron yield and secondary Cs〓 ionization probability by detecting target current and primary ion current under Cs〓 bombardment is put forward The dependence of Cs〓 ionization probability on primary ion energy, primary beam current and substrate compositions, as well as the dependence of secondary ion intensity on erosion time during transient period has been studied The mechanisms of secondary ion emission are explained

二、提出了通过测量靶流和一次束流求取Cs〓轰击下二次电子产额和二次Cs〓离化率的方法，实验研究了一次离子能量、束流强度及不同基体对二次Cs〓离化率的影响和瞬态过程中二次离子强度的变化规律，并对发射机理做了解释。

An interesting and often-used circuit applying the bipolar junction transistor is the so-called current mirror, which serves as a simple current regulator, supplying nearly constant current to a load over a wide range of load resistances.

一个有趣且常用的双极型晶体管电路就是所谓的电流镜。这是一个简单的电流调整器，可以为很宽的负载范围提供几乎恒定的电流。

This text be heavy current in the introduction on the market popular of the calculator sponsor type and its characteristics, analysis lord knothole current current.

本文重在介绍当前市场上流行的计算机主办类型及其特点，分析了主板的当前潮流。

Compared the result of experiment with single leaching, multi leaching of cross current and continuous counter current leaching, in the light of characteristic of waste and inferior tobacco leaves, a special leacher of continuous counter current is devised, and the efficiency of leaching by the operating condition tested too.

对单级浸取、多级错流浸取和连续逆流浸取进行了试验比较，并结合废次烟叶浸取的特点，设计出一种连续逆流浸取器，并研究了该装置的操作参数对浸取率的影响。

Based on the analysis of current situation of urban traffic signal control, a method of single intersection signal control was presented based on fuzzy neural network control. Density of vehicle flow of current and next phase was determined by detecting the queue length of the current and next phase, so that it was further determined whether the phase should be changed or not.

在分析城市交通信号控制研究现状的基础上，提出一种基于神经网络模糊控制的单路口交通信号灯控制方法，通过检测当前相位的排队长度和下一相位的排队长度得出当前相位以及下一相位的车流密度，进而判断是否进行相位变换。

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。

By using a speed sensor, it's applied in driving an electric current into a magnetic current and torque current and controlling them.

通过使用速度传感器，该矢量电动机将电流驱动至磁流以及转矩电流中，并对它们加以控制。

When power transformer is in steady state,its magnetizing current is little,and usually the magnetizing current is not more than 3%~\Q% of rated current value.

变压器正常运行时的励磁电流很小，一般不超过额定电流的3％～10％。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。