名词
中文翻译：铁路起重机
同义词：
['locomotive jack', 'railway crane']
例句：
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1. The railroad jack was used tolift the heavy locomotives ontothe tracks.
铁路起重机被用来将重火车头抬上轨道。
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2. Theengineer had to use therailroad jack to move thetrain across the bridge.
工程师不得不使用铁路起重机将火车过桥。
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3. The railroadjack was a crucial tool for theconstruction crew during the railway expansion project.
铁路起重机是施工队在铁路扩建项目中的关键工具。