内容标题19

  • <tr id='9hN18v'><strong id='9hN18v'></strong><small id='9hN18v'></small><button id='9hN18v'></button><li id='9hN18v'><noscript id='9hN18v'><big id='9hN18v'></big><dt id='9hN18v'></dt></noscript></li></tr><ol id='9hN18v'><option id='9hN18v'><table id='9hN18v'><blockquote id='9hN18v'><tbody id='9hN18v'></tbody></blockquote></table></option></ol><u id='9hN18v'></u><kbd id='9hN18v'><kbd id='9hN18v'></kbd></kbd>

    <code id='9hN18v'><strong id='9hN18v'></strong></code>

    <fieldset id='9hN18v'></fieldset>
          <span id='9hN18v'></span>

              <ins id='9hN18v'></ins>
              <acronym id='9hN18v'><em id='9hN18v'></em><td id='9hN18v'><div id='9hN18v'></div></td></acronym><address id='9hN18v'><big id='9hN18v'><big id='9hN18v'></big><legend id='9hN18v'></legend></big></address>

              <i id='9hN18v'><div id='9hN18v'><ins id='9hN18v'></ins></div></i>
              <i id='9hN18v'></i>
            1. <dl id='9hN18v'></dl>
              1. <blockquote id='9hN18v'><q id='9hN18v'><noscript id='9hN18v'></noscript><dt id='9hN18v'></dt></q></blockquote><noframes id='9hN18v'><i id='9hN18v'></i>

                青藏铁路

                来源:本站原创??时间:2018-04-04?【字体:??

                青藏铁路:解决了“多年冻土、生态脆弱、高寒缺氧”三大世⌒界性难题,荣获国家科技进步特等奖,入选FIDIC37项“全球百年工程”之列,成为世界公认的人类百年来最伟大工程之一。