“oxide minerals in coal”的概念、定义、翻译、参考文献-科学参考

单词	oxide minerals in coal
释义	oxide minerals in coal Encyclopedia 理学煤矿物学释 oxide minerals in coal煤中氧化物矿物煤中金属和非金属元素的阳离子与氧离子结合而成的天然化合物。
随便看	concave downward concave function concave functional concave grating concave kite concave lens concave metric concave minimization problem concave mirror concave operator concave polygon concave polyhedral angle concave polyhedron concave probability measure concave programming concaver concave sequence concave space concave surface concave-up concave-up curve concave upward concavity concavity coefficient concavity cut

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