??2?14?? ??????????:??????????????????,????????????,????
??????????????????????:???
??????????????3D?????
?????????????????????
????????4????????????
2?????????????????
??????????????
???:???????????
???«???»???????????(?)
???:???????????
?????????????????10?????
????:????????????????
??????????????36?????
???GPS??2????:????????
?????????????????????
055??????????????????????
?????????????????????
??????????????
???????????????????2??
4?7?13?????????
??2G?3G???????????
?????????????????????
??????:?8050??,22??????
?????:???????????????
?????????????????10?????
??:?????????????????
?????????????:??????