In order to ensure the capacity and efficiency of railway transport, the Ministry of Railways develops speed and heavy duty vehicles, requesting the higher performance requirements of steel.
为了保证铁路运输的能力和效率，铁道部大力发展高速重载车辆，对于车辆用钢提出了更高的性能要求。
In order to ensure the capacity and efficiency of railway transport, the Ministry of Railways develops speed and heavy duty vehicles, requesting the higher performance requirements of steel.
为了保证铁路运输的能力和效率，铁道部大力发展高速重载车辆，对于车辆用钢提出了更高的性能要求。
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