I heard it's bidirectional, GPS is one way.

LAChinese · 2011-04-12 12:53:39Z

I heard it's bidirectional, GPS is one way.简介

来源: LAChinese 于 2011-04-12 12:53:39 [档案] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

回答: 除了可以摆脱对美国的依赖外，北斗比GPS好在哪里？由 x478op 于 2011-04-12 11:54:45

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