中国国家铁路运营商为时速超过350公里的高速列车新增了一类服务类别，以适应未来更快的线路，预示着其最新、最快的列车型号即将商业化运营，并可能成为世界最快列车车队的又一里程碑。
China’s national rail operator has added a new service category for high-speed trains running above 350km/h to accommodate faster routes in the future, signalling the impending commercial debut of its newest and fastest train model and potentially marking another milestone for the world’s fastest train fleet.
据周五的一份声明，中国国家铁路集团对列车编号系统进行的改革，将为最高时速超过350公里的复兴号列车引入前缀“X”，即汉语“新”字的缩写。声明称：“这主要是为了未来用于运行速度更高的列车。”
China State Railway Group’s overhaul of its train numbering system would introduce the prefix “X” – short for xin, the Chinese word for “new” – for Fuxing trains with a maximum speed higher than 350km/h, according to a statement on Friday. “This is primarily intended for use on trains operating at higher speeds in the future,” the statement said.
复兴号是中国自主设计和制造的旗舰CR系列高速列车。中国一直在测试其新型CR450列车，该列车设计商业运营时速为400公里，比目前在役的最快CR400型号快约50公里。
Fuxing refers to China’s flagship CR series of high-speed trains, designed and manufactured domestically. China has been testing its new CR450 trains, designed to operate commercially at 400km/h, some 50km/h faster than the fastest CR400 models currently in service.
该新型列车去年10月实现了最高453公里的测试时速，得益于与前代相比风阻降低22%、重量减轻10%。
The new train model achieved test speeds of up to 453km/h in October last year, thanks to a 22 per cent reduction in wind resistance and a 10 per cent paring of weight, compared with its predecessor.
CR450还被列入国家铁路局本周一发布的该行业最新五年规划，当局承诺将进一步发展该系列。
The CR450 was also included in the National Railway Administration’s latest five-year plan for the sector released on Monday, with authorities pledging to further develop the series.
根据中国国家铁路的新编号系统，“G”前缀将用于最高时速350公里的高速列车，而“T”将表示最高时速300公里的高速服务，远快于其过去所代表的普通特快列车。
Under China Railway’s new numbering system, the “G” prefix will be used for high-speed trains operating at a maximum speed of 350km/h, while “T” will indicate high-speed services up to 300km/h, significantly faster than the conventional express trains it used to denote.
中国国家铁路称，从2014年（当前列车代码引入之年）到2025年，运营铁路里程增长47.6%，达到16.5万公里。
Between 2014, when the current train codes were introduced, and 2025, operational railway mileage rose 47.6 per cent to 165,000km, according to China Railway.
同期，时速300至350公里运行的高速列车数量增长三倍多，达到3149列，而日均运行的客运列车平均数量增长一倍多，达到11796列。
In the same span, the number of high-speed trains operating at speeds of 300 to 350km/h more than tripled to 3,149, while the average daily number of passenger trains in operation more than doubled to 11,796.
铁路集团补充称，新编号系统将高速列车可用的编号数量提高了40%。
The new numbering system increases the number of designations available for high-speed trains by 40 per cent, the railway group added.