????:1???????:??????150????

2????????

3???????????

4??????????

5?????mm

????????????(??):??,?2???????19??,?????????16.9???????????,?????????????397????12?????????487?????????,??????????????2671?????????????????????????(????)3??????,??64.7??????????,????,?????,??35%,?20%?

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

???:???