在我国铁路建设中，技术创新、技术改造的工作历来都是国家铁路建设的重点。
In the field of railway construction in China, innovation and improvement in technology are always the top of the priorities.
在我国铁路建设中，技术创新、技术改造的工作历来都是国家铁路建设的重点。
In the field of railway construction in China, innovation and improvement in technology are always the top of the priorities.
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