北斗导航卫星系统的首席设计师孙家栋说：“北斗的主要特点就在于它能传递信息。”

Sun Jiadong, Chief Designer of Beidou Navigation Satellite System said "The main feature of Beidou is that it can deliver messages."

youdao

北斗导航卫星系统的首席设计师孙家栋说：“北斗的主要特点就在于它能传递信息。”

Sun Jiadong, Chief Designer of Beidou Navigation Satellite System said "The main feature of Beidou is that it can deliver messages."

youdao