亚洲综合中文字线观看看,中文欧美亚洲欧日韩一,2020年国产精品自线在拍,亚洲AⅤ日韩AV电影在线观看

      1. <dfn id="lnb6s"><var id="lnb6s"></var></dfn>

        1. China launches new BeiDou satellite

          Source: Xinhua| 2019-04-20 23:58:46|Editor: huaxia
          Video PlayerClose

          XICHANG, April 20 (Xinhua) -- China sent a new satellite of the BeiDou Navigation Satellite System (BDS) into space from the Xichang Satellite Launch Center in Sichuan Province at 10:41 p.m. Saturday.

          Launched on a Long March-3B carrier rocket, it is the 44th satellite of the BDS satellite family and the first BDS-3 satellite in inclined geosynchronous Earth 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.

          Yang Changfeng, chief designer of the BeiDou system, said that the hybrid constellation design, in which three groups of satellites at different orbital regimes work in concert, was an exclusive BDS innovation and the world's first.

          It will increase the number of visible satellites in the Asian-Pacific Region, providing better service for the region, Yang said.

          The launch was the 302nd flight mission for the Long March series of carrier rockets, and the 100th for the Long March-3B. Enditem

          KEY WORDS:
          EXPLORE XINHUANET
          010020070750000000000000011100001379939601