填空題有一鐵礦試樣,測得含水0.84%,鐵的質(zhì)量分?jǐn)?shù)為52.69%。則干試樣中鐵的質(zhì)量分?jǐn)?shù)為()。w(Fe)=52.69%×100/(100-0.84)=53.14%

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