Solidification behavior of alloy ZA27 under action of direct current;
ZA27合金在直流电流作用下的凝固行为
Analysis on the causes of direct current fluctuation in rectifying system and the solutions;
整流系统直流电流波动原因分析及解决方案
The influences of direct current density,heating temperature,and holding time on the microstructure evolution of magnesium alloy AZ91D during semi-solid isothermal heat treatment were studied,and the related mechanism was also discussed.
考察了直流电流密度、等温温度及等温时间对 AZ91D 镁合金半固态组织的影响,对电流影响组织演变的机理进行了探讨。
The calculation results of DC currents through transformer neutrals of HVDC system operated in monopole-ground return mode with the influence of sea considered are evidently different from those calculated by terrestrial soil model.
考虑海洋影响的直流输电单极大地运行时变压器中性点流过的直流电流与陆地土壤模型计算的结果有很大不同。
The DC current through transformer neutrals may make the transformers DC biases.
结合岭澳和大亚湾核电站主变的具体情况,按实测的流过主变中性点直流电流结果建立了相应的大地电网计算模型,并对在变压器中性点串联电容的方法进行了深入的分析,还根据分析结果提出了有关设备的主要技术参数。
But the AC and DC transmission system brings DC current in neuter spot of transformer,it will affect the natural running of transformer and whole power system, and the effect to transfomer is different with different configuration,so it is necessary to messure and restrain the DC current in neuter spot of transformer.
但是,交、直流混合输电系统会在交流变压器中性点产生直流电流,造成变压器绕组直流偏磁影响变压器和整个系统的正常运行,并对不同结构变压器产生影响的程度也不尽相同,因此,必须对变压器中性点直流电流进行有效的检测和抑制。
DC ammeter with shunt
带分流器的直流电流表
Study on Active Fiber DC Transducer Used in HVDC;
高压直流输电有源光纤直流电流传感器的研究
A device, such as a diode, that converts alternating current to direct current.
整流器；整流管一种将交流电流转化为直流电流的装置，如二极管
Model J0407 DC Ammeter is suitable for students to measure the current in a DC ciruit in laboratory.
J0407型直流电流表供学校学生在实验中测量直流电路中的电流用。
an alternating [a direct] current dynamo
交流 [直流] 发电机
DC motor converter set
交流-直流电动变流器组
convert (alternating current)to direct current
将（交流电）变成直流电;
galvanic current
直流, 动电电流, 由伏打电池产生的电流
rectifier fed electric drive
整流器供电直流拖动
The current flowing in one direction is called direct current .
沿着一个方向流动的电流叫做直流电。
AC current or voltage source. DC offset can be specified.
交流电流源或电压源。可指定直流偏移。
To convert(alternating current)into direct current.
把…整流将（交流电）转化为直流电
"The AC output must therefore be rectified, or changed to dc."
所以交流电必须整流为直流电。
Direct-current electricity, especially when produced chemically.
直流电直流电，尤指化学反应产生的
Study on HVDC Transmission System with Parallel Large Capacitor Connected in the DC Side of the Rectifier;
整流器直流侧并联大电容的直流输电系统研究
converts alternating current into direct current or vice versa.
变交流电为直流电或者变直流电为交流电的装置。
A.C. can be changed into D, C. or vice versa.
交流电能变成直流电，反过来直流电也能变成交流电。
constant resistance dc potentiometer
恒定电阻直流电位计