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          3.???пβ???л?????
          ????????п???????????????200?????????????У??????????????????????п????????????????п?????????????????п????????????β????6.0??6.3??t??β????????????????????????м???????????????????????????????????????????????????????? ????м ?? ???? ????? ?????????? ??? ????? ????? ??п?? ?? ??м??????????90%????????????????????÷?????????????1??????????????????????????????????λ?CaF2???????4500????????60???????
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          ??????п?????β??????300??t?????????????????????69.94g/t?????????????0.053mm91.6%?????????????????????????3000g/t??????狀????53g/t??????????63g/t???????????2?????8g/t???????????????100g/t?????????????????????????λ??1193.85g/t????????63.74%????β??????800t/d????????????250?????????????8.92t??????223?????
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