单词：nitrocalcite
音标：[naɪtrəʊ'kælsaɪt] ；
钙硝石
n. Nitrate of calcium, a substance having a grayish
white color, occuring in efforescences on old walls, and in limestone
caves, especially where there exists decaying animal matter.
white color, occuring in efforescences on old walls, and in limestone
caves, especially where there exists decaying animal matter.
词型变化：名词复数形式 : nitrocalcites
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