We can enlarge the range of mapping region by utilizing CDMA wireless data transmission in transporting GPS difference data, and realize high precision orientation of real time.
利用CDMA无线数据传输技术传送gps差分数据可以扩大测区范围，实现高精度实时动态定位。
We can enlarge the range of mapping region by utilizing CDMA wireless data transmission in transporting GPS difference data, and realize high precision orientation of real time.
利用CDMA无线数据传输技术传送gps差分数据可以扩大测区范围，实现高精度实时动态定位。
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