综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Chinese scientists call for construction of world's first underwater vacuum tube train

People's Daily Online | Updated: 2017-04-26 10:32
Share
Share - WeChat

China is now capable of building the world's first underwater vacuum tube train, a futuristic form of transportation that can achieve supersonic speed and reduce airborne noise, according to Chinese academics and scholars.

"In order to build an underwater vacuum tunnel, China must bring forth new ideas...about submerged floating tunnels, maglev trains and vacuum techniques. Currently, the country's technologies are sufficient to carry out such a program," Sun Jun, an academician with the Chinese Academy of Sciences, told the Science and Technology Daily.

The vacuum tube train is a magnetic levitation line that utilizes evacuated tubes or tunnels. Due to reduced air resistance, the train could hit a theoretical speed of 2,000 kilometers per hour using relatively little power, and its operation would not be affected by weather.

The China Railway Tunnel Survey & Design Institute has finished a tentative research survey on the possibility of building a 10-kilometer underwater vacuum tunnel in Zhoushan, Zhejiang province. Once built, it would become China's longest underwater tunnel, as well as the world's first underwater vacuum tunnel, cutting the travel time between Fujian and Taipei - located 180 kilometers apart - to just 13 minutes.

The program has been welcomed by many scholars and experts, who note that China has built over 500 underwater tunnels over the past 20 years, gaining rich experience and refined technologies. Sun, along with two other academicians, has called for Chinese authorities to approve and support the program.

Top
BACK TO THE TOP
English
Copyright 1994 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
南康市| 额尔古纳市| 宾川县| 海原县| 肥东县| 呼玛县| 黑河市| 定日县| 崇义县| 大新县| 斗六市| 郸城县| 保康县| 南宁市| 平邑县| 阿尔山市| 浦北县| 株洲市| 连城县| 克什克腾旗| 横峰县| 斗六市| 平远县| 景泰县| 黎平县| 银川市| 太仓市| 什邡市| 合阳县| 凌源市| 德清县| 哈尔滨市| 晴隆县| 铜梁县| 泸水县| 湟中县| 牡丹江市| 临泽县| 廊坊市| 新郑市| 雷州市|