???????????????
?????????Sh??n Y??
??????????????????????????
??????????μ???????
?????????Ρ??????????????????????崯???????
???÷??????????????????0.5??1???????????????????????????????
????????
???η????????????????????????????????ζ???У???????????????????????????????????????????????????????
???????崯????????????????????????????????????
???????á??????????????????????3.2????10??????????4С?????????????????????50??????????30????????3?η???????????10?????407???????????????50????????????е?????321???????????20????6.2?????????????50????15.5?????????168????52.5??????????Ч??74.1??????Ч83????25.9???????????86???????????3????3.5?????????????15????17.4?????????47????54.6??????????Ч??75.6??????Ч21????24.4???????????????????Ч?????71.8????70.1????62.2????
????????*???