?? ???? ?????????????????????“???”
????:1?????????:????
2?????Vx
3??????????????
4?????????
5?????????
??10???????????????24?????????? (?????? ??????)10????24??,????????????????????9?????????????????«???????»(??????????«??????????????????????????»),??????????????????????????????3??????,??????????????“?????”,???????????????????
??,«??»????“????”????,???36??(?)??????,???????????,?????????????????????????18???????36????,?????????????????,??,????????????????,?????????,??????????,???????“??????????????????”?????????????????????????????????????????????30%????,???,??
?,«??????????»??????????????,???????15%??????,???,?????,??????????????????????????????
???????????,??????15%??????????????????????????,????????,?????????????10?????????,??????????????,??????????????????6??,????,??
????,????????,?????????????60%??????????100%?
??????,??“????????????”???????????????????????????????????“??????????”??????????????,?????“???????????????????”????,????????????????????????????1.0-1.5????????(??) ??????????:????????????????????????????????????