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???????????佫???????????ú??????????й????????????????????????????á???????????????κ??????????￡????????????????????????10-20??両????

??????????3?????????μ????????μ??ξ???μ???????????????????????12-22 ??????2????50?????????? ?????200?? ????????0.5????? ?????50????200???????ξ???13-23 ??ζ??3 ??ζ??3 ????????1.5????? ?????150????300??

????????200??20%???????????????????200?????????400??????3???????????????????????????????????????????

????????400?? ???????4?????????????10%?? ??1?????2.5%??

????????1000?? ???????10 ???????????20%?? ??1?????2%

????????400?? ???????4 10%??????????1.5?????? ??1?????1.25%

????????800?? ???????8 20%??????????1.5?????? ??1?????1.25%

????????1000?? ?????????????0.5??

???????2400?? ?????????????1?? (??????????????????????????????????Ч???м?)

???????????? ???? 22???????????????30% ????1????1.36%

???????????? ???? 36???????????????45% ????1????1.25%

??????????? ???? ????46???????????????60% ????1????1.30%

????????1000???? 10????5%???????????????????5%??????? 1????0.5%

???????2-3?????????????????????????飬??? ??硣????????????????????????С?????????????10% 20% 5%

????????μ???400??16?Σ?????10%???????????λ???25????????????????????250???????????????????? ???? ?ξ?????? ???????????????ú???????????y??????? ?ξ?????????

???? 1????????3????????

2??????????????Ч????? ????????????????????????????ü???????????????????

3?????????С?????100????????4??5?Σ??????????2??????????????????????????

4?????飬??? ????????????????????????????