?????e????????????????
???????????????????????о??м???e?г???
?????Χ?????????к???e??????￡???????Ч????????ο???и??e??????
??????????
????????????????Щ???,?
????к??Ρ??Ч
?????????5~7δ?м???????????????
???????(???)????Щ?ù???????????θ?д?鷹15????θ?????????
??Щ
????
?????????????ζ???????????????
????????????????????
????
е?????ò????????e????ж????????????
??Ч???
Щ??????????????-?????????轵????С?á
??e??
Щ???????????????ò?e?????o??
Щ??д
????
йЭ??????50??5?1000?壬10????á?1~2Σ?50~100???λ???Ч????θ麮??á
???????á??100?15?á??гСΣ???????м??????á?ζ?????????Ρθ?λ?θ???????Чá
?????
????????λ??????????Ч???????á
????????桢轵???????????Ч????Ч?
?? ?桱?????????????а???????θ麮??á
????
??????????и??15??????????Ч???????????????????
?????30???????????????Ρ??Щ?????????γ3~5?Ρ???ι?????
?????????????????????
??ζ??Ρ??к????????????к??ξΡ??????εáж???á
??
