1. <sub id="zy88n"></sub>
        1. <blockquote id="zy88n"></blockquote>
          欧美黑人又大又粗xxxxx,人人爽久久久噜人人看,扒开双腿吃奶呻吟做受视频,中国少妇人妻xxxxx,2021国产在线视频,日韩福利片午夜免费观着,特黄aaaaaaa片免费视频,亚洲综合日韩av在线

          Tech China Weekly: reusable rocket, space experiments, Long March rocket, BeiDou satellite and new airport's air conditioning system

          Source: Xinhua| 2019-04-28 15:40:46|Editor: Li Xia
          Video PlayerClose

          BEIJING, April 28 (Xinhua) -- The following are the highlights of China's key technology news from the past week:

          REUSABLE ROCKET

          Xiamen University launched and recovered its first rocket in northwest China's desert.

          The reusable rocket, the Jiageng-I rocket, has a total length of 8.7 meters, a wingspan of 2.5 meters and a take-off mass of 3,700 kg. It traveled at a maximum altitude of 26.2 km and was recovered at the designated landing site.

          SPACE EXPERIMENTS

          Science facilities on China's planned Tiangong space station could support hundreds of space research projects after it's completed in 2022.

          Sixteen experiment racks will be installed in the core module and two lab capsules of the space station, and an extravehicular experiment platform will be built.

          LONG MARCH-5B ROCKET

          China's Long March-5B carrier rocket is scheduled to make its maiden flight in the first half of 2020. With the largest carrying capacity to low-Earth orbit, it will carry the core capsule and experiment capsules of China's space station.

          BEIDOU SATELLITE

          A newly-launched satellite of the BeiDou Navigation Satellite System (BDS) entered its preset orbit.

          After in-orbit tests, the satellite will work with 18 other BDS-3 satellites in intermediate circular orbit and one in geosynchronous Earth orbit.

          NEW AIRPORT'S AIR CONDITIONING SYSTEM

          Beijing Daxing International Airport will be equipped with a ground-source heat pump system, a type of highly efficient, energy saving air conditioning system that provides indoor heating and cooling by using shallow geothermal resources.

          The new airport is expected to handle 45 million passengers annually by 2021 and 72 million by 2025.

          TOP STORIES
          EDITOR’S CHOICE
          MOST VIEWED
          EXPLORE XINHUANET
          010020070750000000000000011100001380184051
          主站蜘蛛池模板: 国产福利观看| 国产精品尤物铁牛tv| 国产av一码二码三码无码 | 国产一区二区三区四区色| 狠狠色狠狠综合久久| 另类专区欧美在线亚洲免费| 一区二区三区久久精品国产| 2020国产精品久久精品| 亚洲av五月天天堂网| 久久无码av三级| 欧美疯狂性受xxxxx另类| 自拍偷自拍亚洲精品熟妇人| 中国大陆高清aⅴ毛片| 精品国产自在现线看久久| 啊灬啊别停灬用力啊无码视频| 国产九九免费视频网站| 中文字幕久久精品波多野结百度| 无码人妻一区二区三区免费| 日韩精品久久久久久久电影蜜臀| 啊灬啊灬啊灬快好深| 精品熟女少妇AV免费观看| 精品久久人人妻人人做精品| 人妻中字视频中文乱码| 亚洲欧美另类在线图片区| 国产精品点击进入在线影院高清| 欧美与黑人午夜性猛交久久久| 欧美亚洲综合在线一区| 五月停停开心中文字幕| 久久国产一区二区日韩av| 含羞草亚洲AV无码久久精品| 亚洲人成人网站色www| 免费看无码自慰一区二区 | 国产成人无码av一区二区在线观看| 国产午夜人做人免费视频| 国产无套粉嫩白浆在线观看| 久久久久四虎精品免费入口| 日本AⅤ精品一区二区三区日| 国产在线超清日本一本| 国产免费99久久精品| 激情综合五月网| 人人澡人摸人人添|