电源的英文：
electric power source

参考例句：

Secondary electric power supply
二次电源

Mains frequency
电源频率;市电频率

They shut off the gas and electricity in their house before leaving on holiday.
他们出外度假之前把家中的煤气和电源关掉。

The process by which the transformer is enabled to draw the requisite amount of power is as follows
使变压器能够从电源输入必要数量的功率的过程如下。

It is vitally important to switch off the electricity before attempting to repair the television.
在准备修理电视机之前先切断电源是至关重要的。

Plug the flow regulator into the wall and attach the nebulizer.
将气流调节器插头接通墙上电源，并连接喷雾器。

To connect(an appliance) to an electrical outlet.
插入电源将(电器)联在一个电源插座上

Disconnect power. Wait 60 minutes before opening lamp housing
断开电源,等60分钟后再打开灯罩板.

First connect the black ground lead, then connect the orange/white striped, yellow and red power input leads.
首先连接黑色地线，然后连接橙色／白色条纹线、黄色和红色电源输入线。

Power control circuit
电源控制电路

electric是什么意思：
adj. 电的；电动的；发电的；导电的；令人震惊的
n. 电；电气车辆；带电体

The atmosphere was electric.
气氛很热烈。

electric cartridge
带电体唱头

This electricity is then fed into the electricity grid system
然后,这一电流被输入电网系统。

power是什么意思：
n. 力量；动力；能力；权力；大国；机能；体力
v. 给…提供动力

smoothing power
修匀功效

These drugs are powerful.
这些药物很有效。

Applications of Power Electronics Technique in Power System
电力电子技术在电力系统中的应用

source是什么意思：
n. 来源，出处；原始资料；原因；发源地

They are trying to trace the source of the trouble.
他们正设法找出这件麻烦事的起因。

Where is the source of the Nile?
尼罗河发源于何处？

Is the water polluted at source?
河水是在源头受到污染的吗？