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Pyrite and sphalerite were grounded to 0.147 mm in a cylinder mill and chalcopyrite and galena to 0.097 mm in an agate ball mill. The F-test results showed that the degree of homogeneity is satisfactory for all samples.
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黄铁矿和闪锌矿用棒磨机少量多级粉碎至0.;147mm,方铅矿和黄铜矿用小型玛瑙球磨机粉碎至0
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