Page 115 - 高职英语口语大赛辅导及教学创新
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第四章 高职英语口语技能大赛题型概述
monitoring stations, as well as operation and management facilities of the inter-satellite
link. The BDS user segment consists of various kinds of BDS basic products, systems,
and services as well as those compatible with other navigation systems, including basic
products such as chips, modules and antennae, terminals, application systems and
application services.
BDS 主要由三部分组成:空间部分、地面部分和用户部分。BDS 空间段由
若干位于地球静止轨道 (GEO)、倾斜地球同步轨道 (IGSO) 和中地球轨道 (MEO)
的卫星组成。BDS 地面段由各种地面站组成,包括主控制站、时间同步 / 上行链
路站、监测站以及卫星间链路的运行和管理设施。BDS 用户群包括各种 BDS 基
本产品、系统和服务以及与其他导航系统兼容的产品、系统和服务,包括芯片、
模块和天线、终端、应用系统和应用服务等基本产品。
The Future of BDS 北斗导航卫星系统的未来
On July 31, 2020, BDS-3 was officially opened. 137 countries around the world
have signed cooperation agreements with BDS. With the success of global networking,
the future international application space of BDS will continue to expand. By 2035,
a more universal, integrated, intelligent and comprehensive national positioning,
navigation and timing system will be established.
2020 年 7 月 31 日,北斗三号全球卫星导航系统正式开通。全球 137 个国家
与北斗卫星导航系统签署了合作协议。随着全球联网的成功,北斗卫星导航系统
未来的国际应用空间将继续扩大。到2035年,将建立一个更普遍、更集成、更智能、
更全面的国家定位、导航和定时系统。
07.FAST 中国天眼
Construction 建设规划
FAST is located in southern part of Guizhou Province, China. It is a major
national science and technology infrastructure construction project. In 1993, Chinese
astronomers proposed to build a 500-meter spherical radio telescope (FAST) in karst
depression of Guizhou Province. On July 10, 2007, the National Development and
Reform Commission approved the project proposal of FAST. In January 2015, the
engineers completed part of the welding and installation of the structures. In September
2016, FAST was completed and launched, and the scientific and technological
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