“alkali-lime index”的概念、定义、翻译、参考文献-科学参考

单词	alkali-lime index
释义	alkali-lime index [`al·kǝ´lī `līm ´in·deks] ^PETROLOGY The percentage by weight of silica in a sequence of igneous rocks on a variation diagram where the weight percentages of CaO and of K₂O and Na₂O are equal.
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