这个词是什么意思？
Separation of a mixture in successive stages, each stage removing from the mixture some proportion of one of the substances, for example by differential solubility in water-solvent mixtures. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D005591 · MeSH 2026。
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