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

2????????

3???????wx

4?????vx

5??????????

12????12?????????????,??,????????????,?????????????????????????????“?”?

????????,???????,???176.6???????,?157?????????170???????,?????????116????,?820???

?? ??????????????:????????????????,????????,?????

??,??????,??????????25200????????,????,?????????,??????????????????,?????????????????9.05??,?????????????????U???????????9.6?????,????????1200??????????????????????????,???????????,??????,? “????????”?????????

?????????,????????????????????,?????16.4?????50.5??????????????????15??????????????,???3450???????????,??????,?????800?,?????????4250??????????????,??????????????,?????,??????1432???,??????,??,????????????????????,????3.67??????,?????,??????????

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