??????·?????????????????
??·?????????????????????????
?????г????????????????к???????????????????????????????г??????????????10~40?????????????????????????????????????????????????????????????????г???????????????????????????????????????а????????????????????????λ???????????????????????????????????
??·????????????????????????
8??2000??8000 35??
8??2000??8000 42??
8??2000??8000 21??
8??2000??8000 32??
12??2000??8000 79??
7??1??18*1800*8m????·??????????????????????
