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."

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十分好的一本书！此书带领我们走进探月总师孙家栋的真实生存，具有活力又感动人！

Very good a book! This book to lead us into the total teacher SunGuDong lunar real survival, energetic and moving!

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