男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影
Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Space industry soars to new heights

By ZHAO LEI | China Daily | Updated: 2019-01-10 07:27
Share
Share - WeChat
Students visit a science exhibition in Guiyang, Guizhou province in November. [Photo/Xinhua]

Space-based services

Toward the end of last year, China announced that its Beidou Navigation Satellite System had started to provide global services and that the space-based network was being used in a number of countries.

According to the China Satellite Navigation Office, 2018 was the busiest year in Beidou's construction history, as the nation launched 10 Long March rockets to position 18 satellites for the system, which also made Beidou the biggest user of Chinese carrier rockets last year. The latest satellites in the network are the 18th and 19th of the Beidou third-generation, or Beidou-3, series and were launched in late November.

Ran Chengqi, director of the China Satellite Navigation Office, said these launches completed the establishment of the Beidou-3 system's "primary constellation", signifying Beidou's entry into a "global era" from a "regional era".

Beidou is one of four space-based navigation networks along with the United States' GPS, Russia's GLONASS and the European Union's Galileo.

Since 2000, when the first Beidou satellite entered orbit, 47 system satellites, including four experimental ones, have been launched and several have been retired. Beidou began providing positioning, navigation, timing and messaging services to civilian users in China and other parts of the Asia-Pacific region in December 2012.

To date, 33 satellites-18 in the Beidou-3 series and 15 in Beidou-2-are operational in several orbits. They offer a global positioning service with 10-meter accuracy and an Asia-Pacific regional service with 5-m accuracy.

Before the end of next year, China plans to send 12 satellites into orbit for Beidou, which, by that time, will have about 30 in service and will have better capabilities and services.

In addition to Beidou, China made significant progress last year in developing other space-based assets for public or commercial purposes.

In December, China Aerospace Science and Industry Corp deployed the first satellite in its ambitious Hongyun project, the country's first low-orbit broadband communications satellite network. Demonstrating low-orbit broadband communications technologies is among the satellite's tasks.

The company intends to place more than 150 Hongyun satellites into orbit around 2023, and the number is likely to rise in response to market demands, according to Xiang Kaiheng, Hongyun's chief designer. After the network becomes fully operational, users will be able to pay to make calls and use high-speed internet services globally, he said.

|<< Previous 1 2 3 4 5 6 7 Next   >>|
Top
BACK TO THE TOP
English
Copyright 1995 - . 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: 文昌市| 吉安县| 柳江县| 济源市| 黄平县| 山丹县| 根河市| 开封县| 三明市| 通化县| 塔城市| 济源市| 东乌珠穆沁旗| 望谟县| 贵州省| 宁城县| 海丰县| 云南省| 麟游县| 苗栗市| 遵义市| 正安县| 名山县| 龙游县| 西宁市| 平阳县| 苗栗县| 宜春市| 蒙自县| 大兴区| 垦利县| 尼玛县| 乃东县| 金阳县| 凤山县| 德昌县| 敖汉旗| 红河县| 汶川县| 榆树市| 开阳县| 兴和县| 桐柏县| 尚义县| 临邑县| 云浮市| 东方市| 文登市| 井陉县| 徐州市| 义马市| 内江市| 称多县| 呼伦贝尔市| 缙云县| 渭源县| 萨嘎县| 东阳市| 连南| 聊城市| 宣威市| 桓仁| 斗六市| 逊克县| 安福县| 从化市| 蒲江县| 中方县| 沅江市| 莲花县| 江西省| 科技| 洛南县| 雷州市| 连州市| 延庆县| 乳山市| 河津市| 丰县| 永州市| 民县| 垦利县|