current in return circuit
current in return circuit
回路电流
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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In electric railway track circuit, the two steel tracks are both transmission line of the track signal and return line for electric locomotive tractive current back to electric substation.
在电气化铁路轨道电路中，两条钢轨即是轨道信号的传输线，又是电力机车牵引电流返回变电所的回流线。
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