嫦娥四号科教家获天下航天奖 嫦娥四号创做收明了多个天下第一
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在我多年的科研与医疗领域工作经历中，氯化钠溶液一直扮演着举足轻重的角色。无论是在实验室的精密实验中，还是在医院的日常治疗中，它都以其独特的性质和功能，成为我们不可或缺的助手。一、氯化钠溶液：科研与医疗
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北京石景山筑牢夏季校园食品安全防线
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水中赤藓红溶液标准物质：精准测定食品色素含量
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