名词
中文翻译：设备电源供应
同义词：
['power supply', 'electrical power supply']
例句：
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1.The device needs a power supply to operate.
这个设备需要电源才能运行。
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2.The power supply is essential for the operation of the computer.
电源对于计算机的运行至关重要。
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3. The power supply was faulty and caused the system to crash.
电源故障导致系统崩溃。