????:1???????:??????

2??????

3???????

4?????

5??????

??7???3???? (? ?????????????)“?????,??????62??4.9??,????????”??????????(??????????:?????)?????????????3?????????????

??????4.9??????????,?????11.75???????,????150%,???????10????/????,?25??/?????

??,????,??????????,????“???”,??????

?????????,?50???????????220????????,??????????????????????3?,????????,???????9???????????????????,????,???,??30???????,??????????5??????????????

“?????????,?????????????”???????,?,????,???,??“???”????????????????????????,????“????+????”?????,“?+???????”???????????

???? ??????????????????? ?? ????????

????,????????????????,??????????????????????,??????????????????????????????????

“???????????????????,?????????,??‘???????????’????‘??????????????????GPS+??????RTK????????’???”???,???,????????????????3915???????????(????????????????????)

??????????:???????????