<blockquote id="pl83f"><p id="pl83f"></p></blockquote>
<s id="pl83f"><li id="pl83f"></li></s>

      
      
      <sub id="pl83f"><rt id="pl83f"></rt></sub>

        <blockquote id="pl83f"><p id="pl83f"></p></blockquote>
        <sub id="pl83f"><rt id="pl83f"></rt></sub>
        女人的天堂av在线播放,3d动漫精品一区二区三区,伦精品一区二区三区视频,国产成人av在线影院无毒,亚洲成av人片天堂网老年人,最新国产精品剧情在线ss,视频一区无码中出在线,无码国产精品久久一区免费

        China science & technology news summary -- May 14

        Source: Xinhua| 2019-05-14 10:47:20|Editor: huaxia
        Video PlayerClose

        BEIJING, May 14 (Xinhua) -- The following is a summary of published science and technology news of China.

        NEW TECHNOLOGY TO PRODUCE ARTEMISININ

        Chinese researchers have developed a new technology to produce artemisinin, the top choice for malaria treatment, on a large scale.

        Researchers proposed enhancing contact between the solvent and the leaves by reflux to speed up the artemisinin extraction. The extraction time was reduced from seven hours to four and a half.

        5G COVERAGE IN BEIJING'S HI-TECH ZONE

        Beijing's economic-technology zone in Yizhuang, in the southeast suburbs of the capital, will have 5G coverage by the end of this year, according to local authorities .

        By the end of this year, the area will build over 200 5G base stations, covering the whole area, according to a conference held in Yizhuang.

        STUDY ON EVOLUTIONARY EXPLOSION

        A team of paleontologists from China, Britain and Russia recently discovered that the oxygen content changes of the atmosphere and ocean were key factors affecting the Cambrian evolutionary explosion of animals 540 million years ago.

        INNOVATION FORUM

        The Pujiang Innovation Forum will be held in Shanghai from May 24 to 26, according to the Ministry of Science and Technology.

        The forum will explore the future development of science and technology, the impact of technological innovation on the economy and urban development, and the new vision and new future of global technological innovation. Enditem

        KEY WORDS:
        EXPLORE XINHUANET
        010020070750000000000000011100001380570471
        主站蜘蛛池模板: 国产亚洲精品自在久久vr| 老熟女乱了伦| 亚洲综合成人一区二区三区| 日韩大片高清播放器| 欧美日韩一线| 欧美疯狂三p群体交乱视频| 97人人模人人爽人人喊电影| 亚洲av优女天堂熟女久久| 国产色无码专区在线观看| 9lporm自拍视频区| 亚洲国产高清第一第二区| 亚洲欧美成人a∨观看| 欧美怡春院一区二区三区 | 五月国产综合视频在线观看| 欧洲免费一区二区三区视频| av在线 亚洲 天堂| 女同精品女同系列在线观看| 国产美女裸身网站免费观看视频 | 国产尤物AV尤物在线看| 福利无遮挡喷水高潮| 国产成人午夜福利在线播放| 久久精品亚洲乱码伦伦中文| 国产第一区二区三区精品| 男女性高爱潮免费网站| 人妻中文字幕av资源站| 午夜在线不卡| 这里只有精品免费视频| 黑人巨大av无码专区| 亚洲一区二区三级av| 色噜噜亚洲男人的天堂| 亚洲AⅤ精品一区二区三区| 成人国产亚洲精品天堂av| 中文字幕日韩国产精品| 欧美激情一区二区| 亚欧乱色精品免费观看| 精品国产乱码久久久久APP下载| 欧美一级黄色影院| 最近中文字幕mv在线视频2018| 国产成人AV性色在线影院| 久久精品国产亚洲av高清蜜臀| 无码免费大香伊蕉在人线国产|