查询词典 current events

A tested prime motor is mechanically connected with a magnetic particle brake through driving steps, an instruction computer controls the output current of a power program controller, and the output current is used as the excitation current of the magnetic particle brake. A ball feed screw is arranged between a decelerator and a counterweight pan during the driving steps, and a cap nut covers on the ball feed screw. The holder of the ball feed screw is fixedly provided with a guide rail which is fixedly connected with the cap nut through a flange.

其被测试原动机通过传动环节与磁粉制动器机械连接，指令计算机控制电源程序控制器的输出电流，电源程序控制器的输出电流作为磁粉制动器的激磁电流，传动环节中在减速器和配重盘之间设有一滚珠丝杠，滚珠丝杠上套设一螺母，在滚珠丝杠的底座上固定一导轨，该导轨与螺母通过法兰固定连接。

Where a conductor supplies a receptacle or cord connector that is marked as specified in 59.2 or 59.3 with an intended maximum available current, the load current value is to be the maximum current appearing in any of the markings provided.

应用在插座或接线端子上的导线要标识使用最大负载电流值，在59.2或59.3有规定最大有效电流。

Lamp Current Crest Factor: Ratio of peak current to the root mean square lamp Current.

灯管电流峰值因数：峰值电流与灯管电流平方根的比值。。

As a result of current-limiting circuit breaker with current limiting features may be particularly applicable to large short-circuit current of the network '.

限流断路器由于具有限流特性，特别适用于可能出现大短路电流的网络'。

The problems of direct current drive system of finishing mill group in wire production line are raised in this paper, and the key to solving the problems is that taking alternating current requency control system instead of direct current drive system is discussed.

针对某钢铁公司第三型钢厂线材生产线精轧机组原直流传动系统存在的问题，通过技术论证，采用交流变频调速系统取代原直流传动系统，不仅使传动系统故障率大为降低，而且产量也大大增加。

On the basis of comparing the feature of inrush current's grille curve with that of fault current, a novel transformer protection scheme is proposed, which is not affected by add-assist circulation current at delta side on Y/D connection transformer.

在比较励磁涌流与短路电流网格曲线各自特点的基础上，提出了一种新型变压器保护方案，该方案不受Y/D接线的变压器D侧环流助增作用的影响。

Because the magnetic field is always associated with the current, then the magnetic field is expected to think that it is by another current - displacement current generated.

因为磁场总是与电流相联系，则预期的磁场也认为是由另一种电流——位移电流产生的。

Based on nonliner dynamic simulation model of BLDCM.simulation model of speed and double close loops of current are built in adjusting speed system for BLDCM.Through simulation the performance of BLDCM is researched,in the way PI adjustors of speed and current adopted,fuzzy control used in speed loop and PI adjustor used in current loop,which prepares theory base for controller design of high quality BLDCM.

在直流无刷电机非线性动态仿真模型基础上建立了转速、电流双闭环直流无刷电机调速系统仿真模型，对转速、电流环均采用PI调节器及转速环采用模糊控制器、电流环采用PI调节器的直流无刷电机性能分别进行了仿真研究，为高性能直流无刷电机控制器设计提供了理论依据。

The characteristics analysis of two different current -to-voltage convertors,current transformer an reactance transformer ,shows that the current transformer has the same converting effect on the currents with different frequencies,while the reactance transformer transforms has various converting effect.

通过对电流互感器式&电流-电压&变换器和电抗变压器式&电流-电压&变换器变换特性的分析，结果表明：对于不同频率的电流，电流互感器式&电流-电压&变换器对它们的变换几乎是相同的。

Is shown in Figure 4-15. The picoammeter reads the current at the last dynode, which is equal to the anode current minus the current flowing to the previous dynode.

皮安计在最后一个倍增管电极处读取电流，此电流等于阳极电流减去流过前一个倍增管电极的电流。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。