名词
中文翻译：直流电轨道电路
同义词：
['direct current circuit', 'direct current rail circuit']
例句：
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1. The new power station is equipped with a high-efficiency direct current rail circuit.
新电厂配备了高效的直流电轨道电路。
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2. The train's direct current rail circuit was damaged during the accident.
火车的直流电轨道电路在事故中受损。
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3. The engineer carefully inspected the direct current rail circuit before starting the engine.
工程师在启动引擎之前仔细检查了直流电轨道电路。