Host eleven, testing machine power supply with power but the equipment can not move up and down.

试验机主机电源有电但设备不可以上下移动。

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A 300w experimental prototype of power supply with power-factor-correction function based on dual-loop control strategy is presented in this paper.

基于电流和电压的双环控制策略，研制了一台输出功率300w的功率因数校正电源样机。

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The power center was an exciting place with four 1,020-kw Nordberg diesels to supply power.

动力中枢是个很令人兴奋的地方，有四台1020千瓦的诺德贝格柴油发电机提供电力。

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As for unsightly wires, the Audyssey Wireless Speakers have two: the unavoidable power cord (with a chunky power supply) as well as a thin black-and-red cable that connects the left and right channels. (You may want to replace this with more discreet, clear speaker wire if you can't hide it somehow.) Both make the speakers better suited to a permanent set-up than on-the-go listening.

WSJ: Big Sound, Wire-Free: Audyssey Bluetooth Speakers | Geek Chic

There is not enough of it in the reservoirs banking the three hydro-electric dams that supply Kabul with power.

ECONOMIST: It's not just Iraq that has power problems

The Argus 2 requires an external power supply paired with external hardware, like goggles that collect pictures and send them directly to the optic nerve.

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