China is the first and only country to have commercial high-speed train service on conventional rail lines that can reach a top operational speed of 350 km/h.
中国是第一个也是唯一一个在传统轨道线路上，拥有最高运营时速达到350公里的商业高速列车运行服务的国家。
Compared to conventional rail, high-speed railway construction technology and quality have more stringent requirements.
相较于常规铁路，高速铁路对于施工技术以及质量具有更为严格的要求。
Compared to conventional rail, high-speed railway construction technology and quality have more stringent requirements.
相较于常规铁路，高速铁路对于施工技术以及质量具有更为严格的要求。
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