<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          US EUROPE AFRICA ASIA 中文
          Opinion / Op-Ed Contributors

          China leads in many high-speed rail aspects

          By Zhai Wanming (China Daily) Updated: 2015-04-27 07:38

          China leads in many high-speed rail aspects

          A CRH train that runs on Lanzhou-Urumqi High-Speed Railway stops at Urumqi South Railway Station in Urumqi, Xinjiang Uygur autonomous region, Dec 26, 2014. [Photo/Xinhua]

          Media reports suggest Japanese Prime Minister Shinzo Abe will try to promote Shinkansen bullet train technology during his visit to the United States (which started on April 26) to cash in on the US' plans to prop up its economy with high-speed railway.

          Obviously, Japan is competing with China to get a share of the high-speed train market in US and some other countries. So which country has the upper hand?

          China may be a latecomer in high-speed train construction, but some of its technologies are better than other countries'. For example, one exquisite technological requirement is that the surface of the rails that touches the wheels must be delicately clean while the track geometry should be smooth, because even the minutest flaw could shake a train considering its high speed. This is just one of the areas in which China excels - the rails on the Beijing-Shanghai high-speed train line are so smooth that the test train reached speeds of 380 kilometers an hour without any evident shaking.

          On another technological index - degree of ride comfort - China's high-speed trains' record is good, too. Every train has to pass strict even severe tests before being pressed into service to ensure passengers enjoy the maximum comfort. Many passengers who have traveled by high-speed trains in China and Europe say the former are better. On other indexes such as dynamic safety, too, China's high-speed railways show good performance.

          Besides, China's high-speed railways cost the least in the world. It is globally acknowledged that, the cost of building high-speed railways is the lowest in China. In October 2014, while bidding for the Boston subway program, China CNR Corporation Limited, despite not bagging the contract, quoted a price that was only about 60 percent that of its Japanese competitor Kawasaki Heavy Industries.

          The incident prompted Japanese enterprises to accuse China of "dumping", albeit without any basis. China's high-speed railways cost less because of the low cost of labor in the country. High-speed railways require civil and electrical engineering, and all kinds of physical labor, which cost much more in a fast aging society like Japan. And therein lies China's advantage.

          China leads in many high-speed rail aspects

          Also, the low cost of China's high-speed railways has a lot to do with the lower requirement of profit.

          Another incomparable advantage Chinese high-speed railways have is the country's difficult geographical terrains. China has already built more than 16,000 km of high-speed railways across high plateaus, mountains, plains and deserts. Working in such terrains, Chinese engineers and workers have gained precious experience to deal with difficulties of any kind. Working together, engineers and other technical experts, and manual workers have developed a strong teamwork spirit and mutual trust.

          Of course, the Japanese too have their advantages. Masaki Ogata, executive vice-chairman of East Japan Railway Company, said in a recent interview, Shinkansen technology can prevent damage to high-speed railways during earthquakes, and has advantages in environmental protection and noise control.

          Indeed, Japanese high-speed railways enjoy these advantages. But China is developing its high-speed train technology fast enough to catch up with the best by, among other things, funding research teams to develop advanced monitoring and early warning systems, and quake-resistant technology to ensure the safety of high-speed railways. Even in environmental protection, China has gained enough experience while building the railway that connects Lhasa, Tibet with Qinghai province.

          In short, China's high-speed railways are good in quality and competitive in price, and will definitely be better in the future.

          Zhai Wanming is a chair professor at?Southwest Jiaotong University and a member of the Chinese Academy of Sciences. The article is an excerpt from his interview with China Daily's Zhang Zhouxiang.

          Most Viewed Today's Top News
          ...
          主站蜘蛛池模板: 欧洲精品色在线观看| 亚洲精品宾馆在线精品酒店| 久久精品国产亚洲av热九九热| 国产精品不卡区一区二| bt天堂新版中文在线| 国产亚洲精品中文字幕| 国产乱啊有帅gv小太正| 国产午夜福利不卡在线观看| 国色天香中文字幕在线视频| 麻豆成人传媒一区二区| 国内精品久久久久影院不卡| 亚洲欧洲日韩综合色天使| 国产亚洲精品va在线| 刺激第一页720lu久久| 中文日韩在线一区二区| 国产欧美日韩视频怡春院| 国产目拍亚洲精品二区| 国产性色的免费视频网站| 国产av黄色一区二区三区| 久久午夜无码免费| 日韩在线视频观看免费网站| 性色欲情网站iwww| 亚洲成a人片在线观看中| 中文字幕精品人妻av在线| 国产95在线 | 欧美| 欧美老熟妇牲交| 又爽又黄又无遮挡的激情视频| 无码专区视频精品老司机| 国产精品亚洲玖玖玖在线观看 | 强奷白丝美女在线观看| 国产成人剧情av在线| 亚洲天堂自拍| 国产无遮挡免费真人视频在线观看| 波多野结系列18部无码观看a| 日本韩国一区二区精品| 日韩av一区二区三区精品| 精品国产乱码久久久久久1区2区 | 韩国三级在线 中文字幕 无码| 中文字幕av一区二区| 最近2019中文字幕免费看| 中文字幕 日韩 人妻 无码|