三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

USEUROPEAFRICAASIA 中文雙語Fran?ais
Opinion
Home / Opinion / Op-Ed Contributors

Unremitting pursuit of space dream

China Daily | Updated: 2016-12-28 07:56

III. Major Tasks for the Next Five Years

In the next five years China plans to expedite the development of its space endeavors by continuing to enhance the basic capacities of its space industry, strengthen research into key and cutting-edge technologies, and implement manned spaceflight, lunar exploration, the Beidou Navigation Satellite System, high-resolution earth observation system, new-generation launch vehicles and other important projects. Furthermore, the country is to launch new key scientific and technological programs and major projects, complete, by and large, its space infrastructure system, expand its space applications in breadth and depth, and further conduct research into space science, promoting the integrated development of space science, technology and applications.

1. Space transport system

We will develop and launch medium-lift launch vehicles which are non-toxic and pollution-free, improve the new-generation launch vehicle family, and enhance their reliability.

Endeavors will be made to research key technologies and further study the plans for developing heavy-lift launch vehicles. Breakthroughs are expected in key technologies for the overall system, high-thrust liquid oxygen and kerosene engines, and oxygen and hydrogen engines of such launch vehicles. Thereafter the heavy-lift launch vehicle project will be activated.

China will conduct research into the technologies for low-cost launch vehicles, new upper stage and the reusable space transportation system between the earth and low-earth orbit.

2. Space infrastructure

China is to improve its satellite systems and their basic related items, develop the three major satellite systems of remote-sensing, communications and broadcasting, and navigation and positioning, and build a space-ground integrated information network. In this way, a space infrastructure system capable of providing steady and sustained services will take shape, boosting the satellite and related applications industrial sector.

(1) Satellite remote-sensing system. In accordance with the policy guideline for developing multi-functional satellites, and creating networks of satellites and integrating them, we will focus on three series of satellites for observing the land, ocean and atmosphere, respectively. China is to develop and launch satellites capable of high-resolution multi-mode optical observation, L-band differential interferometric synthetic aperture radar imaging, carbon monitoring of the territorial ecosystem, atmospheric Lidar detection, ocean salinity detection and new-type ocean color observation. We will take steps to build our capabilities of highly efficient, comprehensive global observation and data acquisition with a rational allocation of low-, medium- and high-spatial resolution technologies, and an optimized combination of multiple observation methods. China will make overall construction and improvement on remote-sensing satellite receiving station networks, calibration and validation fields, data centers, data-sharing platforms and common application supporting platforms to provide remote-sensing satellite data receiving services across the world.

(2) Satellite communications and broadcasting system. This system is oriented toward industrial and market applications, and mainly operates through business models while meeting public welfare needs. China will develop both fixed and mobile communications and broadcasting as well as data relay satellites, build a space-ground integrated information network consisting of space-based systems such as high-earth-orbit broadband satellite systems and low-earth-orbit mobile satellite systems, and ground-based systems such as satellite-access stations. TT&C stations, gateway stations, uplink stations, calibration fields and other satellite ground facilities are to be built synchronously. These efforts are expected to bring about a comprehensive system capable of providing broadband communications, fixed communications, direct-broadcast television, mobile communications and mobile multimedia broadcast services. A global satellite communications and broadcasting system integrated with the ground communications network will be established step by step.

(3) Satellite navigation system. China is to continuously enhance the service capacities of the Beidou-2. With sustained efforts in building the Beidou global system, we plan to start providing basic services to countries along the Silk Road Economic Belt and 21st-Century Maritime Silk Road in 2018, form a network consisting of 35 satellites for global services by 2020, and provide all clients with more accurate and more reliable services through advancing the ground-based and satellite-based augmentation systems in an integrated way.

Most Viewed in 24 Hours
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: 六月丁香深爱六月综合激情 | 亚洲人成亚洲人成在线观看 | 日韩字幕无线乱码 | 99久久国语露脸精品对白 | 成人在线网址 | 黄网在线观看网址入口 | 国产拍 | 日韩3区 | 久久观看| 欧美在线观看一区二区三 | 亚洲欧美日韩一区 | 日韩精品欧美亚洲高清有无 | 丝袜制服中文字幕 | 亚洲精品美女久久久久99 | 一级特黄录像绵费播放 | 日本一区二区不卡久久入口 | 亚洲欧美日韩国产综合专区 | 日韩视频在线观看中字 | 成人免费草草视频 | 在线观看www妖精免费福利视频 | 欧美手机看片 | 国产女同一区二区三区五区 | 70岁老妇女一级毛片爽 | 婷婷六月久久综合丁香可观看 | 国产欧美日韩精品在线 | 国产在线成人一区二区 | 黄色片91 | 蜜桃视频一区二区三区四区 | 国产va欧美va在线观看 | 91短视频网站 | 99久久精品免费 | 亚洲美色综合天天久久综合精品 | 天天久久综合网站 | 中文字幕在线播放不卡 | 欧美一级特毛片 | 国产亚洲欧洲国产综合一区 | 精品欧美 | 在线成人免费观看国产精品 | 91制服| 黄色生活毛片 | 国产精品久久久久免费视频 |