名词短语
中文翻译：闭环电路工作同义词
同义词：
['closed-loop circuit', 'closed-circuit operation']
例句：
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1. The new device uses a closed-circuit working to power itself.
这款新设备使用闭环工作来供电。
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2. The engineers were able to close the circuit and fix the issue quickly.
工程师们能够迅速关闭电路并解决了问题。
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3. In this circuit, the current flows in one direction only, preventing any potential hazards.
在这个电路中，电流只能单向流动，防止任何潜在的危险。