北斗卫星导航系统
翻译为:Beidou navigation system
单词:navigation （n）航线，导航
例句有:
据了解，北斗卫星导航系统将提供高质量的卫星导航服务，包括开放和授权两种服务类型。
It is understood that Compass satellite navigation system will provide high quality satellite navigation services, including open and authorized two types of services.
单词:
It is understood that 据了解
Compass（n）罗盘，指南针
satellite 人造卫星，卫星
navigation 导航
provide 提供
quality 质量
including 包括
authorized 批准，授权
types 种类
services 公共服务
