1.
Research on the Urban Rail Transit Traction Power Supply Rectifier
城市轨道交通直流供电整流机组研究
2.
The Research of Low-Voltage DC Supply Digital Electronic Ballasts for HID Lamps;
低压直流供电HID灯数字化电子镇流器研究
3.
DC-Based Electronic Ballast for Ceramic Metal Halide Lamp
一种直流供电的陶瓷金卤灯电子镇流器
4.
After the advent of transformers, much of the load was served by alternating current instead of direct current.
变压器出现后,许多负荷由交流供电而不用直流供电。
5.
rectifier fed electric drive
整流器供电直流拖动
6.
supply meter for direct or alternating current
直流或交流电供应电度表
7.
Automatic exchange for DC and AC supply.
直流电源与交流供电能自动转换。
8.
Transient Simulation of Short-Circuit Currents in DC Traction Power Supply System
直流牵引供电系统短路电流暂态仿真
9.
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。
10.
The earth provides a low resistance conducting path for direct cur-rent.
大地提供了低电阻直流导电通道。
11.
THE DEVELOPMENT OF LN-GDXT-IV AC-DC ISOLATED POWER SUPPLY
LN-GDXT-IV型交直流隔离供电电源的研制
12.
Parameter Matching of Relay Protection in DC Traction Power System
直流牵引供电系统继电保护参数匹配
13.
The Design and Application of Common DC Bus Power Supply
公共直流母线供电电源的设计与应用
14.
Study of Distribution and Protection of Stray Current in DC Traction Power Supply System;
直流牵引供电系统杂散电流分布与防护研究
15.
Model J0408 DC Voltmeter is suitable for students to measure the voltage in a DC ciruit in laboratory.
J0408型直流电压表供学校学生在实验中测量直流电路中的电压用。
16.
The input power is also provided by a DC motor.
输入动力也是由直流电机提供的。
17.
D.C.traction power supply system for subway
GB/T10411-1989地铁直流牵引供电系统
18.
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