短路的

Based on short circuit fault reasons causing the outage of roadway lighting, this paper presents four maintenance methods, including separate detecting, series fuse detecting, group lighting alternating supply detecting and applying projection lamp detecting, and via the aspects of economics and man-power usage to obtain the optimal one.

因此，本文针对夜间路灯线路因发生短路故障而未能点亮的情况，提出二分侦测法、串联保险丝侦测法、隔盏灯供电侦测法以及使用投光灯侦测法等四种方法，并透过经济和人力资源(含现场安装或改修及事故处理)等观点加以比较分析。

RESULTS The agar cavity experiment showed that there was a big antiblastic area of bacoeriotat around the guide tube,which had strong activity of antibiosis in the nutrient neat both.

大鼠急性动静脉短路试验和兔颈外静脉搭桥慢性手术试验均显示其明显的抗凝血作用。

The following studies have been done:① According to the technological requirements of CO2 shielded arc welding machine, a set of control system for are-welding inverter power supply is developed.

根据熔化极CO2焊机具有燃弧和短路两种工作状态，且两种状态下控制目标不同的特点，在控制系统中设计了双闭环反馈：焊接电压反馈及焊接电流变化率di/dt反馈。

The analysis of large hydrogenerator with armature short-circuit will face the problem of too large amount of calculation.

分析大型水轮发电机内部短路时将会碰到计算量过大的困难。

34C02M8/LM8 Pinout: Short Circuit Current Output Current Transition Time Maximum Transmission Rate 1,000 RS-422 RECEIVER Common Mode Range Differential Input Differential Input Threshold-0.2 Input Voltage Hysteresis30 Input Resistance3 TTL Output Level V V2.4 Maximum Receiving Rate1,000 Short Circuit Output Current POWER REQUIREMENTS V =+12V, 10% V =+5V, 10% V =-12V, 10% ENVIRONMENTAL Operating Temperature -CS0 -MR-55 Storage Temperature-65

34C02M8/LM8引脚说明：短路电流输出电流过渡时期的最大传输速率1000的RS - 422接收器差分输入共模范围差分输入阈值0.2输入电压Hysteresis30输入Resistance3 TTL输出等级V 2.4版本的最大接收Rate1，000短路输出电流电源要求ν= 12五，10％的V =+5 V的，10％的V =- 12V的，10％，环境工作温度- CS0 -议员- 55存储温度- 65

The results show that the parallel waveform control is a low cost and effective method of lowering spattering.

结果表明：并联式波控是一种低成本的、降低飞溅的有效方法，可以优化焊接电流的波形，抑制短路末期的峰值电流，确保短路末期液桥的柔顺破断，削弱燃弧初期电弧对熔池的冲击。

Based on an analysis of distribution pattern of hydrocyclone"s axial velocity, by changing the inlet flow rate Qi and split ratio Fand making an investigation in the effect of Qi and F on axial velocity field, the factors causing the forming of short-cut circuit and circulating flow are found. It is considered that the short-cut circuit and circulating flow are produced by the structure of the hydrocyclone, and can"t be eliminated completely, though they interfere the flow field inside a hydrocyclone and affect the separation accuracy. Test results show that, by increasing Qi and F and controlling them in a certain range, the separation efficiency of the hydrocyclone can be improved.

在研究旋流器轴向速度分布规律的基础上，分析了短路流与循环流的形成原因，试验研究了改变操作参数，即改变入口流量Qi与分流比F对轴向速度场的影响认为短路流与循环流是由旋流器结构决定的，很难完全消除，它们干扰了旋流腔和大锥段的流场，在一定程度上也影响了分离精度试验结果表明，加大入口流量Qi与分流比F，并将其控制在一定范围内，便可提高分离效率这项研究对水力旋流器分离机理的认识与实际应用均有重要意义

Due to capacity increase or structure change of the power system, an extra-high current possibly 100 times of the rated current may appear in some circuits of the power system when a short-circuit fault happens nearby. This current is extra high and exceeds the permitted value of 10% error curve of protection current transformer.

在电力系统中，各回路的最大故障短路电流和额定工作电流的比值应在合理的范围内，以保证保护用电流互感器的工作精度，但由于系统容量增大或因系统结构等原因，某些回路在某些情况下的最大故障短路电流远远超过了正常范围。

In this paper, the conjunct fault feature of broken rotor bar and stator inter-turn short circuit fault have been summarized and the mutual relation of the two has been disclosed according to detailed analysis. As establishes an important theoretical foundation for combination detection of broken rotor bar and stator inter-turn short circuit conjunct fault.

本文通过对仿真结果的详尽分析，系统地概括出了笼型异步电动机发生转子断条与定子绕组匝间短路双重故障时的故障特征，明确揭示了二者之间的相互关系，为实现转子断条与定子绕组匝间短路双重故障联合检测提供了重要的理论依据。

To study the effects of no load voltage step response index on disturbance quality of power system for self excited shunt excitation system, this paper analyzes the types of power system disturbances and disturbing qualities, establishes the different groups of self excited shunt excitation system according to the different overshoot in identical rise time and the different rise time in identical overshoot.

1电力系统扰动项目的选择为研究自并励静止励磁系统的发电机空载电压阶跃响应指标对电力系统扰动品质的影响，首先确定电力系统扰动种类。选择了反映大干扰稳定和小干扰稳定的发电机近端三相短路0.15切线路、远方三相短路0.15切线路、高压母线突加无功负荷、甩负荷、小干扰振荡模式计算等5个项目。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。