試算78-95%酒精調配成70 75 78％消毒酒精所需水量
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#武漢肺炎#酒精濃度#消毒酒精
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Try to calculate the amount of water required to sterilize alcohol from 78-95% alcohol to 70 75 78%
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# 武汉 肺炎 #alcohol concentration #
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