名词
中文翻译：切换电源供应器
同义词：
['switched power supply', 'switching power supply']
例句：
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1. Thenew computer has a powerful switching power supply that can last for hours on end.
这台新电脑有一个强大的开关电源，可以持续运行数小时。
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2. The switcher is responsible for managing the flow of power to different parts of the building.
开关员负责管理向建筑物不同部分输送电力的流动。
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3.The power supply unit is designed to provide stable and reliable power to all electronic devices in the building.
电源单元旨在为建筑内所有电子设备提供稳定和可靠的电源。