1.
harmonic content of an a.c.power supply
交流电源的谐波含量
2.
non-break AC power plant
无中断交流电源设备
3.
clock, master, battery, accumulator or mains powered
主时钟,由电池、蓄电池或交流电源驱动
4.
Resistance thermometer bridges may be excited from either a-c or d-c sources.
电阻温度计电桥的供电可以是交流电源，也可以是直流电源。
5.
Remove the AC power adapter from the notebook PC.
拆除交流电源适配器的笔记本电脑.
6.
clock, wall, for electric system,battery, accumulator mains powered
电钟系统挂钟,由电池、蓄电池或交流电源驱动
7.
Insert the plug of the AC adapter into a wall outlet.
将变压器插头插入交流电源插座
8.
An Intrinsically Safe High-Frequency AC Power
本质安全高频交流电源的研究与设计
9.
UPS alternating current power and its applications to chemical fiber factory
UPS交流电源及其在化纤厂的应用
10.
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。
11.
combined a.c. and d.c. welding power source
交直流两用弧焊电源
12.
full-automatic alternating current stabilized voltage supply
全自动交流稳压电源
13.
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。
14.
circuit design, wiring diagrams, schematics, AC/DC sources
电路设计, 接线图, 示意图, 交流/直流电源
15.
Automatic exchange for DC and AC supply.
直流电源与交流供电能自动转换。
16.
Active Filter Technique on AC-side of HVDC Transmission Systems
直流输电系统交流侧的有源滤波技术
17.
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
18.
The common power sources for the excitation system produce an alternating current; therefore a means of rectifying the alternating current becomes necessary.
励磁系统通常的电源是交流电,因此必须具有将交流电整流的措施。