?????????????????? ???????????????? ????????????????????

???????????????????????????佫??????????????????????仯???????С????????????????????????????

???????????????????????????????????????????????????5???????????????????25%??????????????????????????????·???????????????????????????????????40???????????????????????????ɡ???????????????30W???1W???????80???????????25%???????????????5%?????????????6%?????????50%?????????70??????????????? ??????????????2W???????????????????????ɡ?

???????????????????

1.????????????3.8W????(????)??1W????2.8*2.5*1.7*0.3=3.6W ???????????????

???3W????(????)??1W????2*3.5*2.2*0.3=4.6W

????3.2W????(????)??1W????2.2*3.5*0.3=2.3W

???? 2.4W????(????)??1W????1.4*2*0.4=1

???2.5W????(????) ??1W????1.5*1.5*0??3=0.6

???? 1.8W????(????)??1W????0.8*3*0.3=0.6

6???????????=12.7W???????????6W(??????????60???????????60)???????????30-6.7=23.3W??

2.????????????

????3.8W????(????)??1W????2.8*1*1.7*0.3=1.5W ???????????????

???3W????(????)??1W????2*1**0.3=0.6W

????3.2W????(????)??1W????2.2*0.8*0.3=0.6W

???? 2.4W????(????)??1W????1.4*1*0.4=0.5

???2.5W????(????) ??1W????1.5*0.8*0??3=0.36

???? 1.8W????(????)??1W????0.8*1*0.3=0.3

6???????????=4W

???????????????????????6.7W(?????????);?????4W;??????6W(?????????2??????;????????????6.7W;??????4W(????????27.4W);??????6W(?????????2??????)???????????????????????????

?????????????????????????β6????????????????????????????????????????????3????????6?????????????????????????????????????ж???????????????????????????????????????????????????????????????????????????????6????????????????????????????????????????????????????????t????????