以下为句子列表：
英文: Experimental results showed that an average rejection of 88.16% calcium sulfate could be achieved by a two-stage flotation operation, approaching the theoretical removal ratio of 91.58% from crude carnallite.
中文: 实验结果表明，分级浮选法除钙率平均达88.16%，接近原矿的理论可除钙离子量91.58%。
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英文: The separation of calcium sulfate from water-mining carnallite by flotation for the production of KCl from Chaerhan Salt Lake was studied.
中文: 摘要研究了青海察尔汗盐湖水采光卤石矿生产氯化钾工艺中浮选除钙的方法。
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