名词
中文翻译：铁路重联机
同义词：
['多线重联机例句：1. The railway line is being renovated for the upcoming holiday season.（这条铁路线正在为即将到来的假期季节进行翻新。）2. The new rail relaying machine has greatly improved the efficiency of the train operation.（新型的铁路重联机大大提高了列车运行的效率。）']
例句：
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1. The railway line is being renovated for the upcoming holiday season.
这条铁路线正在为即将到来的假期季节进行翻新。
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2. The new rail relaying machine has greatly improved the efficiency of the train operation.
新型的铁路重联机大大提高了列车运行的效率。
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3. The engineers are busy testing the new rail relaying machine before it's put into use.
工程师们正忙于测试新的铁路重联机，以便在投入使用前进行检验。