1.
Verification and uncertainty evaluation of the DC low current reference source
直流小电流标准源的检定与不确定度评定
2.
an alternating [a direct] current dynamo
交流 [直流] 发电机
3.
DC current or voltage source. Magnitude of AC component can be specified.
直流电流源或电压源。可指定交流分量的大小。
4.
miniature low power electromagnetic DC relay
小型小功率直流电磁继电器
5.
DC ammeter with shunt
带分流器的直流电流表
6.
DC motor converter set
交流-直流电动变流器组
7.
convert (alternating current)to direct current
将（交流电）变成直流电;
8.
galvanic current
直流, 动电电流, 由伏打电池产生的电流
9.
The Research of the Distant Short-circuit Fault Current in Rapid Transit Systems Based on Wavelet Transform;
基于小波变换的地铁直流侧远方短路电流分析
10.
The propeller turns a small D.C. generator.
螺旋桨带动一个小型直流发电机。
11.
A New Circuit of small Capacity Dc drive with SCR Power Supply
小容量直流拖动可控硅供电的新线路
12.
Controlling Rotation Speed of the DC motor Using the D/A Converter Interface of Microcomputer;
应用微机模块控制小直流电机的转速
13.
The Timing System of Low-power DC Electromotor Based on P87LPC768
基于P87LPC768的小功率直流电动机调速系统
14.
rectifier fed electric drive
整流器供电直流拖动
15.
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。
16.
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。
17.
To convert(alternating current)into direct current.
把…整流将（交流电）转化为直流电
18.
"The AC output must therefore be rectified, or changed to dc."
所以交流电必须整流为直流电。