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novaculite [nəu'vækjulaɪt] n
gen. 均密砂岩
geol. 均密石英岩
oil 均密硅质岩; 微隐晶质致密石英岩
tech. 致密石英岩; 微晶石英质燧石岩; 天然微晶均密石英粉

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