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

2??????????

3?????

4?2020?????????????

5????????

????8????????????6???(?????????? ???????? ??)????????6??????????,7????,±800????????????????????????????????????????“????”??????134.8?????,????38%,?????

7???????4??,???,??????????30.7?,??????????????????2?,???,7????715.5????,????9.9%?

???????,????,?????????????????????,?“????”?????,??,??????????430??????????,???20%?

±800?????????? ? ????

?????8?????,?????????????????????????,??????????????,????????“?”???????????????????????????5???8??????4????,“????”?????????????????????????,?????5.39????????,???????????????2000??????????????24??

±800??????,????????????????????????,????????????????,??????????GIS?????????????????????8??6??????????????,??????????????????????????????????±800?8????800????

“????????????????‘????’??50%,???,??????”????????,??????????????????,??2?????,???

??????,???,??????????????????,??????????????????,?????????????????7????????,????140???,??????????,7???????18.5????????????????,????60%,???4436???,?????????????????(??????)

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