?????

??г?????????μ??51?????????θ?????????????????????????????

Χ????????????????л??????????????′??????飬??1?????г??????????????200?λ500??????100-300???1000????????????Э?п???????80-100??????棬?λ??У????20-40?

????????????н50-100?100????????15?30??λн30???????λ6?

??????????????????????о???????6??У?????????λ80?С???????У??30?20?о????????300-500??о????????10?

??λλ?У????λ?н?Э鹤???????????н??λЧ?Χ???У????з?????Э鶨???????崦÷????棬з?ò50%У?????????????й????涨???

???彨衣??????????й?д?е′?з??????????+?????????Χ??????λ?????????????з??衣????彨裬?5000??????????????????

??′????5????????βι?紴??????????5000?????????????????????? ?