???????????2???????????????12??????????? (?????? ??)??????????????????????,13??????6???????????????????????????????,????????????????????????,????

???????????,??????,?????????????????75.03????????????????????,??????

???“???????????”????????????????????,????????????????????62.90??????,???????,????????????????????,???????????,????????,?????

?,???????????????,??????????103.81???????,??,??????????????????????????????

????,????“?????????”???,???????????????????????????????1:6???????????????????????

?????????????????,??“???????????”?????????????“??”?????????,????12????????????2:1???????????????????,??????????“???????????”?

13????????????????,??????????????????????????????????????????,?????,??????????????????

?,???????????????????13??????????????????????????,31???????U???

????,???????????????????????????:“??,???????????”

????????U?????????????????????,??????,???

??????????,????4×6????????????????4×7.5?????????????????????????,??????????????,??1????????????2????

???????7.5?“???”??????,?????????????????????????????????,???????,??????????????????????(????????????) ???????????????:??????????

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??:???????????,??????????,??????????????