????:1???????:92??95?????

2?????

3???????500?4???

4???????

5???????

??11??????????????????25? ???????????:?????????«??»??????,?????24?????,????????????????,??????????????3????,?????????????GPS???“???????????”?

?????????,?10??????????????????,?????

???????,?,???????GPS????????????????????,??????????????????????????,??????????????????????

«?????????????????????»??????,?????????????GPS??????????????????,?????,???,???

??????,???,?,????????????????????(??????????) ????:???