???????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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