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????:1????????????:????600?????
2??????????
3??????????2021
4?????????
5?????2023
?6?15?????????(??????? ???? ? ?????????)???????????????????????????,6??????????????????????14?20??????????????????????????15???????8?,???15????????????????????2???????????31?,???
?142?????????????,6?14?????????????20?????????????????????????15?8??????????????????????????,???40??100?,?????????????????,??231.4????
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6????15?,??,??????????,????????,???
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?,???3?10???,??????????????????,?????????????????
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?????????????????6???15??10?,????,????????4???????????????,???????10?27?????,???
?????6?15??????????????????????,?,?????,??????40~80?,???????????90~160????????,?50~70??,?????,????????,??,???????,??????(?)
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