<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
          Global EditionASIA 中文雙語Fran?ais
          China
          Home / China / This Day That Year

          This Day, That Year: Feb 21

          China Daily | Updated: 2019-04-08 16:18
          Share
          Share - WeChat

          Editor's note: This year marks the 70th anniversary of the founding of New China.

          An item on Feb 21, 1986, from China Daily showed that China's second telecommunications satellite had been successfully guided into permanent orbit.

          The first was launched in April 1984.

          After decades of research and development, the country has become a leader in the communications satellite sector.

          In August 2016, China launched the first quantum communications satellite, Micius, which was the first step to building a space-based quantum communications network that is virtually uncrackable.

          The country's first high-throughput communications satellite Shijian 13 was launched in April 2017. It marked the start of China's large-capacity communications network.

          The technology is crucial to enabling a spacecraft to send, receive and transmit a large quantity of data with ground stations.

          Last year, leading contractor China Aerospace Science and Technology Corp unveiled a plan to build the country's largest satellite constellation.

          Upon its completion, the Hongyan constellation will consist of more than 320 satellites operating in low-Earth orbits, capable of providing phone services and broadband internet access to users anywhere on the globe, according to the company.

          By then people will be able to use high-quality Wi-Fi services anywhere and anytime.

          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
           
          主站蜘蛛池模板: 亚洲精品成人7777在线观看| 公喝错春药让我高潮| 亚洲国产五月综合网| 狠狠色丁香婷婷综合尤物| 老子午夜精品无码| 青青草原国产精品啪啪视频| 日韩一区在线中文字幕| 午夜高清福利在线观看| 国产一区二区三区av在线无码观看| 国产三级国产精品国产专| 农村老熟妇乱子伦视频| 国语精品一区二区三区| 国产成人无码一区二区三区在线 | 熟妇人妻无乱码中文字幕真矢织江| 国产18禁黄网站禁片免费视频 | 日本欧美一区二区三区在线播放| 老熟女重囗味hdxx69| 性欧美videofree高清精品| 亚洲嫩模一区二区三区视频| 2021国产精品视频网站| 永久免费av无码网站直播| 国产精品流白浆无遮挡| 岛国精品一区二区三区| 国产高清无遮挡内容丰富| 国产成人高清亚洲综合| 国产精品偷伦一区二区 | 国产精品呻吟一区二区三区| japanese无码中文字幕| 国产精品一二三入口播放| 日韩精品人妻黄色一级片| 精品日韩人妻中文字幕| 国产一区二区a毛片色欲| 两个人看的www高清免费中文 | 欧美成人精品在线| 国产成人亚洲精品日韩激情| 欧美熟妇乱子伦XX视频| 日韩一区二区三区三级| 欧美经典人人爽人人爽人人片| 国产精品视频午夜福利| 久久亚洲AV成人无码电影| 激情综合五月天开心久久|