??????????????????????
????????s/??b??
??????????????????????????????????????????????????????????????????????????0.6-0.65??????????0.65-0.75???????0.84-0.86??
???????????????????????
?????,???????????,?й??????????????????????????λ??????ó??????2011??2012???2013????????????????????,??2013??????????????????????,???ó?????????????????????,???????,???????????,?????г?????????;???????,?????????????ü????????????,??????????????????????á???
??????????????????????
22*2200*3570
13*3040*5600
18*1800*7330
18*1800*7330
?????3.0*1*8??q420q?????????????????????????????
