名词
中文翻译：背景电流
同义词：
['background current', 'background current', 'background current']
例句：
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1. The background current in the room is very strong.
房间里的背景电流非常强。
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2. The background current was too strong for me to hear anything clearly.
背景电流太强了，我听不清楚任何东西。
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3. The background current is causing interference with the mains power supply.
背景电流正在干扰主电源供应。