Two prototypes of the CR450 high-speed train, unveiled on Sunday in Beijing, are capable of reaching a test speed of 450 kilometers per hour and an operational speed of 400 km/h, which will make the CR450 the fastest high-speed train in the world once it enters commercial service.
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。
未来，CR450动车组投入商业运营后，运营时速将达到400公里，成为全球跑最快的高铁列车。
1、unveil/ ˌʌnˈveɪl / verb. 展示，介绍，推出；将…公之于众
例句：They will be unveiling their new models at the Motor Show.
他们将在汽车大展上首次推出自己的新型汽车。——《牛津词典》
2、capable / ˈkeɪpəbl / adj.有能力；能力强的（专升本词汇）
例句：Every student in the class is capable of passing the exam.
班上每个同学都有能力通过这次考试。。——《柯林斯词典》
3、operational / ˌɑːpəˈreɪʃənl / adj.运转的；运营的；
例句：The whole system will be fully operational by December 1995.
整个系统到1995年12月将可全面投入使用。——《柯林斯词典》
4、commercial / ˈ/kəˈmɜːrʃl / adj. 商业的；商业化的；
例句：Docklands in its heyday was a major centre of industrial and commercial activity...
港区在其最繁荣的时期曾是主要的工商业活动中心。——《柯林斯词典》
According to China State Railway Group, which led the development of the train, the CR450 has set new global benchmarks by excelling in key areas such as operational speed, energy efficiency, noise reduction and braking performance.
自2018年开始，在中国国家铁路集团有限公司组织下，国内科研院所、高校、企业等科研力量组成联合创新团队，在时速400公里商业运营技术“无人区”进行探索。
经过7年艰苦攻关，CR450动车组“成绩满满”，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。
5、railway/ ˈreɪlweɪ / n.铁路；（专升本词汇）
例句：The road ran beside a railway.
公路建在铁路旁边。——《柯林斯词典》
6、efficiency / ɪˈfɪʃnsi / n.效率；功率；效能（专升本词汇）
例句：There are many ways to increase agricultural efficiency in the poorer areas of the world.
有很多方法能够提高世界贫困地区的农业效率。——《柯林斯词典》
7、performance /pərˈfɔːrməns/ n. 性能，业绩；
例句：He criticized the recent poor performance of the company.
他批评公司近期业绩不佳。——《牛津词典》
Despite its higher speed, the CR450 has braking efficiency similar to those of trains running at 350 km/h — a result of significant engineering advancements that ensure the train's stability, performance and safety at higher speeds.
A standout feature of the CR450 is its exceptional energy efficiency. The train's running resistance has been reduced by 22 percent and its weight cut by 10 percent, leading to improved fuel efficiency. These optimizations help minimize energy consumption despite the increased speed.
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%。
8、stability / stəˈbɪləti / n.稳定(性)；稳定性；稳固(性)
例句：Political stability, meanwhile, will be a prime concern
同时，政治稳定性将放在首位。——《柯林斯高阶英汉双解学习词典》
9、resistance / rɪˈzɪstəns / n.反对；阻力
例句：The design of the bicycle has managed to reduce the effects of wind resistance and drag.
这种自行车的设计成功地减少了风的阻力和摩擦力。——《柯林斯词典》
10、consumption / kənˈsʌmpʃn / n. 消耗，消耗量
例句：Gas and oil consumption always increases in cold weather.
燃气和燃油的消耗量在天冷时总会增加。——《牛津词典》
文章转自中国日报双语新闻
https://mp.weixin.qq.com/s/RG682j28jbZOz_vPrhsjdA
