?????????а???????????????????????????????н??м??????????μ??????????????????????????????????????????????ɡ?
??????
?????????????????????Щ?????о???????????????з??e?????Щ???棬???????????????????????????????????????????????????????????????????????????????????????????????ú?????????á?
?????=????+??????+?????(?????)+?????+???????+????????+???
?????????????????????????????????????????????????????????????
?????????????糤?50cm?????60cm????????????????????????λ????m(??)?????ó?????е????????0.5*0.6=0.3??????
???????????????????????????????????е???????????????????????????????????????????350???0.35???/?????????????6000?????????????????????????????????????С?
???????????????0.3/?????*0.35???/?????=0.105????
????????????????0.105???*1000=105????
??????е????????105???*6?/???(6000?/??)=630???
??????????е????????630?/1000=0.63???
????????????????????????????????????????????????260?????????????????????????1???????????????????????0.05?/???
????????е??????????????????????????????????0.89??????????????????0.68???
???????????????ī????б??涼????????????????????????100?????????????????????(0.35/?????)????????????е???У????????????????0.99??0.89+0.1????????????????????0.79??0.68+0.11?????
???????????????????????????????????з????????80???????????????0.03?/???
???????е???У??????????????1.07??0.99+0.08?????????????????????0.82??0.79+0.03?????
??к?????????y?????????з????????60???0.03?/???
???????е???У??????????????1.13??1.07+0.06?????????????????????0.85??0.82+0.03?????
????????????????????????????????????????????????????????????????????ó????????????
