蜜臀av性久久久久|国产免费久久精品99|国产99久久久久久免费|成人精品一区二区三区在线|日韩精品一区二区av在线|国产亚洲欧美在线观看四区|色噜噜综合亚洲av中文无码|99久久久国产精品免费播放器

<cite id="ygcks"><center id="ygcks"></center></cite>
  • 
    
  • <rt id="ygcks"></rt>
    <cite id="ygcks"></cite>
  • <li id="ygcks"><source id="ygcks"></source></li> <button id="ygcks"></button>
  • <button id="ygcks"></button>
    <button id="ygcks"><input id="ygcks"></input></button>
    
    
    <abbr id="ygcks"><source id="ygcks"></source></abbr>
    
    
    
     
    
    

    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
    洮南市| 石门县| 肇源县| 齐河县| 五莲县| 绥阳县| 桃江县| 梧州市| 西城区| 盐山县| 怀化市| 理塘县| 博罗县| 舟山市| 湖南省| 翼城县| 鄂托克旗| 科技| 黄平县| 伊吾县| 新营市| 德昌县| 古田县| 南陵县| 乌审旗| 灵璧县| 宁阳县| 布拖县| 东乌珠穆沁旗| 都匀市| 英吉沙县| 江安县| 仙桃市| 丹东市| 海淀区| 涿州市| 同江市| 临西县| 仁化县| 临颍县| 永修县|