日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

US EUROPE AFRICA ASIA 中文
China / Innovation

Researchers fast-track a train for all systems

By ZHAO LEI (China Daily) Updated: 2016-06-06 07:12

China working on next step in high-speed rail transport, says innovation expert

Researchers fast-track a train for all systems

A next-generation high-speed train is being tested in China. The train can run at 400 kilometers per hour and is suitable for cross-border services. DOU XIN/XINHUA

China is developing a next-generation bullet train that can run at 400 kilometers an hour and is suitable for cross-border services, a senior researcher with the nation's high-speed rail program said on Sunday.

"The train, to be developed in the 13th Five-Year Plan period (2016-20), will have wheels that can be adjusted to fit various gauges on other countries' tracks, compared with trains now that need to have their wheels changed before entering foreign systems," said Jia Limin, a professor at Beijing Jiaotong University and head of China's high-speed rail innovation program.

"Once the new bullet train is put into service, it will operate on China's rail network as well as on the Moscow-Kazan high-speed line in Russia, which is designed for 400 km/h trains," he added, referring to the 770-km link that connects Moscow and Kazan, a metropolis on the Volga River. The rail line is a joint venture between China and Russia.

According to an agreement by Chinese and Russian authorities, the Moscow-Kazan line is likely to be extended to Beijing, which will significantly reduce rail travel times between the two nation's capitals.

Wheels on trains now traveling between China and Russia have be changed before crossing the border because the gauges are different. The new bullet train will not require this procedure, saving time and money, Jia said.

He was speaking in Beijing on the sidelines of the 12th Five-Year Plan (2011-15) Technology and Innovation Achievements Exhibition.

Currently, high-speed trains in China run at speeds ranging from 250 to 300 km/h, although their maximum speed can reach about 350 km/h.

With the aim of exploring new concepts, Jia said China has developed and begun to test an ultrafast bullet train that is potentially able to travel at 600 km/h. The train has been made by CRRC Qingdao Sifang Co, a subsidiary of the country's largest train maker, China Railway Rolling Stock Corp, in Shandong province.

The ultrafast train is being used to trial cutting-edge technologies, advanced materials and to test operational limits, the professor said, adding that its development means China is now able to design and manufacture trains that can travel at least 500 km/h.

However, Liu Youmei, a bullet train expert and academic at the Chinese Academy of Engineering, said that under the current conditions, the maximum speed for high-speed railways cannot exceed 400 km/h because higher speeds will incur much higher operation costs.

He said the ultrafast train should be used only for demonstrating new concepts and technologies rather than commercial operation.

Highlights
Hot Topics
...
主站蜘蛛池模板: 国产在线观看福利 | 91高清在线观看 | 亚洲高清一区二区三区 | 天天射天天添 | av日韩在线免费观看 | 奇米影视4色 | 成人二区| 欧美又黄又嫩大片a级 | 亚洲欧洲精品一区二区 | 国产午夜亚洲精品 | 亚洲精品人人 | 99极品视频 | 午夜精品视频在线观看 | 精品成人佐山爱一区二区 | 国产午夜亚洲精品一区 | 午夜私人影院粉色视频我要 | 天天色综合3| 免费播放欧美一级特黄 | 狠狠操麻豆 | 亚洲精品一区二区三区婷婷月色 | 特级丰满少妇一级aaaa爱毛片 | 亚洲十欧美十日韩十国产 | 国产成人一区二区 | 亚洲 中文 欧美 日韩 在线 | 大看蕉a在线观看 | 婷婷久久五月天 | 日本伊人色综合网站 | 欧美一区二区三区中文字幕 | 91色欧美 | 一区二区三区 日韩 | 欧美久久久无码精品亚洲日韩小说 | 国产精品视频久久 | 欧美激情精品久久久久久久 | 欧美日一区二区三区 | 久草成人在线 | 国产精品久久久久久久久久 | 亚洲看片网| www.久久久.com | 成人av在线播放 | 狠狠色丁香婷婷综合橹不卡 | 美女被免费网站在线视频九色 |