北斗三号：中国“智”造 服务全球
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6月23日，中国北斗三号卫星导航系统最后一颗组网卫星在西昌卫星发射中心成功发射。这颗“收官之星”，意味着北斗三号星座部署全面完成。
On June 23, the last networking satellite of China's BeiDou-3 Navigation Satellite System was successfully launched from Xichang Satellite Launch Center. This “final satellite” means that the deployment of BeiDou-3 has been completed in an all-round way.
20多年来，整个北斗系统经历了三步走阶段：
In the past 20 years, the BeiDou Navigation Satellite System (BDS) has completed three stages:
第一阶段，2000年，建成北斗一号系统，向中国提供服务；
In 2000, in its first stage, BeiDou-1 Navigation Satellite System was built to provide services to China;
第二阶段，2012年，建成北斗二号系统，向亚太地区提供服务；
In 2012, in its second stage, BeiDou-2 Navigation Satellite System was built to provide services to the Asia Pacific region;
第三阶段，到2020年，完成30颗卫星发射组网，全面建成北斗三号系统，向全球提供服务。
In its third phase in 2020, 30 satellites are launched and the satellite network will be completed, and BeiDou-3 Navigation Satellite System will be fully equipped to provide services to the world.
作为中国自主建设、独立运行的全球卫星导航系统，北斗卫星导航系统（BDS）与美国的GPS、俄罗斯的GLONASS、欧盟的GALILEO并称为全球四大卫星导航系统。而与这其他几个卫星导航系统相比，北斗三号还有不少优点，例如高轨卫星更多，因此抗遮挡能力强，尤其在低纬度地区性能特点更为明显。
As a global satellite navigation system independently built and operated by China, BDS, GPS of the United States, GLONASS of Russia and Galileo of the European Union are called the four major global satellite navigation systems. Compared with these other satellite navigation systems, BDS has many advantages, such as more high orbit satellites, which gives it a strong anti-blocking ability, especially in low latitude areas.
配合北斗地基增强系统，北斗三号系统可以在覆盖范围内实现米级、分米级、厘米级的高精度服务。当定位精度达到厘米级时，不仅能服务汽车导航和自动驾驶，还有助于无人机送货，应用领域进一步拓宽。
With the BeiDou Ground-based Augmentation System, BeiDou-3 Navigation Satellite System can achieve high-precision service at meter level, decimeter level and centimeter level within its coverage area. When the positioning accuracy reaches centimeter level, it can not only serve vehicle navigation and automatic driving, but also help UAV delivery and further expand the application field.
未来，北斗导航系统在以农业、交通运输为代表的重点领域中将会得到大力推广，包括精准农业、高精度测绘、智慧城市、5G基站授时等。
In the future, BDS will be vigorously promoted in key fields such as agriculture and transportation, including precision agriculture, high-precision mapping, smart city, 5G base station timing service, etc.
例如在农业方面，基于北斗的农机作业监管平台可实现农机远程管理与精准作业，农业机械无人驾驶等应用对高精度北斗服务需求强烈；在救灾减灾方面，基于北斗系统的导航、定位、短报文通信功能，可以显著提高灾害应急救援的快速反应能力和决策能力。
For example, in the aspect of agriculture, the agricultural machinery operation supervision platform based on BDS can realize the remote management and precise operation of agricultural machinery, and the application of agricultural machinery such as unmanned driving could generate a strong demand for high-precision BDS service; in the aspect of disaster relief and disaster mitigation, the navigation, positioning and short message communication functions based on BDS can significantly improve the quick response ability and decision-making ability in disaster rescue operations.
现在，无论在世界任何角落，北斗三号都会向你提供高精度、高可靠、高保险、多功能的服务。北斗三号作为中国“智”造，将服务全球，造福人类。
Now, BeiDou-3 Navigation Satellite System will provide high-precision, high reliability, high insurance and multi-functional services in any corner of the world. The development of the ‘smart’ BeiDou-3 Navigation Satellite System will serve the world and benefit mankind.
策划：孙磊 后期：孙磊