?λ????????????????????????
?λ????????????????,?λ????ν??????,?λ?????????????
?λ????????????????????????
??????????????????????????????????????????????????????????幫???????????????????????????????????????????????????????????ι?????????????????????
?????????1?????????ɡ?
????????????????????飺1.????Ч???????й??2.????????????????????????λ?????Ч?????????????????λ?????69??????????????????89??109???????73??84??95???????*9???????????????????????????????????????????????????
??????????????????????????????С????????69??89??109???????????????е???????г?????????109????2000????????????1000????????1500??????????500??????????????????????????????????幫???????????з???λ????????????????????????β???????????·?????μ?????????ó???????????????????????
?????95??????????????????89?????????109??????????????????????????????????????Ч?????????????????
1.????????17%????
2.????????????????20%;
3.????????????????????25%????????
????????·???￡?
???????????????????????????????????2200??????????????????????????????????1000????????2400????100???λ????????????30?Ρ?
?????????????￡?
???籦?????1500????????????2200-1500=700????????????????950???????????????2200-950=1250???????????????250??????????250/1500*100%=16.67%????????????±??
??????????????????????????????
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?????ó??????????????
??????????ó?????????
1.????1500???￡?????????17%??
2.????1500-2000???????????????????????
3.????2000???????????????????????????????100?????????????????1%????2400??????????????????????25%????????????ν“???????λ”??????????2?????90???????????2000????????????????λ????????????2?
?????????????ó?????????????????????20%??
????????????????40407?λ??????????????http://audiogearreviews.com/shouyou/mhxy/
