粉丝专属福：
On December 29, the prototype of the CR450 EMU was released in Beijing, marking a major breakthrough in the "CR450 Science and Technology Innovation Project", which will greatly enhance the scientific and technological innovation level and the ability of self-reliance and self-improvement of China's railways, and further consolidate and expand China's leading advantage in high-speed railway technology in the world.12月29日，CR450动车组样车在北京发布，这标志着“CR450科技创新工程”取得重大突破，将极大提升我国铁路科技创新水平和科技自立自强能力，进一步巩固扩大我国高铁技术世界领跑优势。Since the 18th National Congress of the Communist Party of China, under the strong leadership of the Central Committee of the Communist Party of China with Comrade Xi Jinping at its core, China's railways have unswervingly followed the path of independent innovation and independently developed a large number of scientific and technological innovation achievements represented by the Fuxing EMU. It has constructed a complete set of high-speed railway technology systems covering the three major fields of high-speed railway engineering construction, equipment manufacturing and operation management. China's high-speed railway has achieved a historic progress from catching up to leading, and its high-speed railway technology has set an international benchmark.
党的十八大以来，在以习近平同志为核心的党中央坚强领导下，中国铁路坚定不移走自主创新之路, 自主研发了以复兴号动车组为代表的一大批科技创新成果，构建了涵盖高铁工程建设、装备制造、运营管理三大领域的成套高铁技术体系，中国高铁实现了从追赶到领跑的历史性进步，高铁技术树起国际标杆。In order to further consolidate and expand China's leading advantage in high-speed railway technology in the world and better serve and support Chinese modernization, China Railway Group has thoroughly implemented the spirit of General Secretary Xi Jinping's important instructions and instructions on scientific and technological innovation and railway work, implemented the national innovation-driven development strategy and the "14th Five-Year" Plan Outline. With the strong support of relevant state ministries, commissions and units, it has given full play to the advantages of the new national system and the role of the leading railway scientific and technological innovation enterprises, and taken the lead in organizing domestic scientific research institutes, universities, enterprises and other superior scientific research forces to form a joint innovation team to carry out collaborative research.为进一步巩固扩大我国高铁技术世界领跑优势，更好地服务和支撑中国式现代化，国铁集团深入贯彻习近平总书记对科技创新和铁路工作的重要指示批示精神，落实国家创新驱动发展战略和“十四五”规划纲要，在国家有关部委和单位的大力支持下，充分发挥新型举国体制优势和铁路科技创新领军企业作用，牵头组织国内科研院所、高校、企业等优势科研力量组成联合创新团队，开展协同攻关。In 2018, it began to explore in the "no man's land" of 400 km/h commercial operation technology, studied the basic theory and key technologies of high-speed railway under the operating conditions of 400 km/h, and made a large amount of technical accumulation and demonstration. In 2021, the "CR450 Science and Technology Innovation Project" was officially implemented, and the research and development of the CR450 EMU with a speed of 400 km/h and the research on the complete set of high-speed railway infrastructure technologies were started. In 2022, the general technical conditions of the CR450 EMU were released, and the parameter tests and a large number of simulation calculations of the CR450 EMU development technical conditions were carried out. From 2022 to 2023, the CR450 EMU new technology component replacement tests were carried out on the Yunnan-Mengzi and Fuzhou-Xiamen high-speed railways respectively, and the performance of the key new technologies and components was verified. In 2024, the production of the prototype was officially started, and the intelligent manufacturing technology was widely applied and the quality control was strengthened to ensure the smooth rollout of the CR450 EMU prototype.2018年开始在时速400公里商业运营技术“无人区”进行探索，研究时速400公里运行条件下的高铁基础理论和关键技术，做了大量技术积累和论证；2021年正式实施“CR450科技创新工程”，开始时速400公里CR450动车组研发和高铁基础设施成套技术研究；2022年发布了CR450动车组总体技术条件，开展了CR450动车组研制技术条件参数试验和大量仿真计算；2022年至2023年，分别在弥蒙、福厦高铁开展了CR450动车组新技术部件换装试验，对关键新技术和部件性能进行了验证；2024年正式启动样车生产，广泛应用智能制造技术，强化质量管控，确保了CR450动车组样车顺利下线。The main indicators of the CR450 EMU prototype, such as operating speed, running energy consumption, interior noise and braking distance, are internationally leading. First, it is faster. The test speed is 450 km/h and the operating speed is 400 km/h. After it is put into commercial operation in the future, the space-time distance can be further compressed and passengers' travel will be more convenient and efficient. Second, it is safer. The braking distance is shorter and the running stability is better. When the operating speed is increased, the braking distance is basically the same. Third, it is more energy-efficient. The running resistance of the whole EMU is reduced by 22% and the weight is reduced by 10%. Fourth, it is more comfortable. The comfort index is better, the interior noise is reduced by 2 decibels and the passenger compartment service space is increased by 4%, which can provide passengers with diversified, convenient and personalized services and a better riding experience. Fifth, it is smarter. The fields of driving and control, driver intelligent interaction, safety monitoring and passenger intelligent service have all been comprehensively upgraded.CR450动车组样车运营速度、运行能耗、车内噪声、制动距离等主要指标国际领先。一是更高速。试验速度时速450公里，运营速度时速400公里，未来投入商业运营后可进一步压缩时空距离，让旅客出行更加便捷高效。二是更安全。制动距离更短、运行稳定性更优，在运营速度提升的情况下，制动距离基本相当。三是更节能。动车组整车运行阻力降低22%，减重10%。四是更舒适。舒适度指标更优，车内噪声降低2分贝，客室服务空间增加4%，可为旅客提供多样化、便利化、个性化服务，乘坐体验更好。五是更智能。行车与控制、司机智能交互、安全监控、旅客智能服务等领域均得到全面升级。The CR450 EMU is a vivid practice of the national innovation-driven development strategy and a comprehensive display of China's scientific and technological innovation and high-end equipment manufacturing strength. It fully demonstrates the advantages of the socialist system and is of great significance for promoting the high-level scientific and technological self-reliance and self-improvement of China's railways, leading the development of new quality productive forces in railways with scientific and technological innovation and building a modern railway industry system.CR450动车组是国家创新驱动发展战略的生动实践，是我国科技创新和高端装备制造实力的综合展现，充分彰显了社会主义制度优势，对于推动我国铁路高水平科技自立自强，以科技创新引领铁路新质生产力发展，建设现代化铁路产业体系具有重要意义。Next, China Railway Group will arrange the CR450 EMU prototype to carry out a series of line tests and assessments to further test various performances, continuously optimize technical indicators and strive for early commercial operation to serve the people's beautiful travel life.下一步，国铁集团将安排CR450动车组样车开展一系列线路试验和考核，进一步检验各项性能，不断优化技术指标，争取早日投入商业运营，服务人民群众美好旅行生活。欢迎加入“Love English 1”英语资料分享群，群内可自助获取英语相关资源。二维码失效后可加小编微信：LoveEnglish01。
