?????12??18??????????????16??Q420q??????????????????
?????????????
???????????????
8??2000??8000 42??
8??2000??8000 21??
10??1800??8000 32??
10??1800??8000 80??
10??2000??8000 21??
10??2000??8000 52??
????????
??????????????????????????????????????????????????????α????????????????????????????????????????????????λ??
????????????????
?????г????????????????к???????????????????????????????г??????????????10~40?????????????????????????????????????????????????????????????????г???????????????????????????????????????а????????????????????????λ???????????????????????????????????
?????12??18???????????????16??Q420q??????????????????