You can't make a machine work without power supply.

没有动力，机器就不能转动。

《新英汉大辞典》

Since they are smaller, utilities can conduct maintenance work without the entire power production going offline.

既然它们更小，那么公共事业可以不需要关闭整体电力生产的情况下进行维修工作。

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Consequently, many manufacturers have long been hoping for a technology that will work without vulnerable power and data cables.

因此生产商们一直祈求一种能让机器工作的新技术，这种技术应该抛弃易受损的电源和数据线。

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Cordless phones won't work without power, though.

WSJ: Phone companies prepare for storm power outages

The two firms said that, once finished, the power pack would work with future and existing IBM Thinkpad notebooks without them needing to be modified.

BBC: NEWS | Technology | Laptops with fuel cells approach

Nearly 100 towns and villages across the country remain without electricity, and emergency crews are continuing their work to try to restore power.

BBC: Dozens die in Ukraine's cold snap