?? ?? ???????????????????????
????:1???????:?????????
2????????
3?????????
4???????
5?sn???????
??,??,???????,????????????????,??????,?????????????“????????”???????????????,??“??????????+?????????????”??,???????????????,???,???,???
??,????????,???????????????,?????????????????????,??
9????,????????,??????“???????????????????360????”??????????????,??????????????360?????????????????????,????
???????????????????????,??????,????????????????????????,???????
???????,????????,???????????????,??,?????3C?????????,????????????????6???????????????,??????????????????????????1000??????
??? ??:10????16??????????3C???,??,???????100%???????????????,???60%?????
?????????? ?????:????????????,?1:3,3C????????1:10?
?????????????,??????,????????1.2?????????,????????????8????????????,??1.5??????????????? ?????????:????????