When you turn a switch, you can easily operate lighting, heating or power-driven electrical devices.

旋动开关，就业能轻而易举地启动照明装置、供热装置和电动装置。

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The sort, type, parameter, circuitry and application of the choppers used in power-driven vehicles with storage battery or series DC motors.

介绍以蓄电池和串励直流电动机为动力的电动搬运车辆用斩波器的种类、型号、参数、电路原理和应用情况。

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A large vehicle with an enclosed body having special power-driven equipment for loading, compressing, and distributing wastes within the body.

一种拥有封闭车体及特殊动力设备的大型车辆，用来对垃圾进行装载、压缩和分类等工作。

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Early versions of new labor restrictions still being hashed out in Congress would have barred children under 16 from operating power-driven farm equipment and kept anyone under 18 from working at agricultural co-ops and stockyards (the latest version would let kids keep running machines on their parents' spreads).

WSJ: The Panic Over Bullies

Heartening news rang forth from the renewable energy sector this week as a UN-backed study reported that the building of new renewable energy plants has officially overtaken fossil fuel plants in Europe and the US. We also took a look at two brand new types of power plants -- the world's first hydrogen-driven power plant in Italy and the first hybrid coal-solar power plant in Colorado.

ENGADGET: Inhabitat's Week in Green: of mirror cubes and urban icebergs

And as our economy gets back on track, consider the power behind songwriter-driven small businesses that provide jobs in every state.

FORBES: We Need Strong Copyright Laws Now More Than Ever