“crystalline alumina”的概念、定义、翻译、参考文献-科学参考

单词	crystalline alumina
释义	crystalline alumina [`kris·tǝ·lǝn ǝ`lüm·ǝ·nǝ] ^MATERIALS An abrasive which consists of essentially the same mineral as corundum, but whose physical properties such as crystal structure, size, and shape of grain are so controlled as to produce the most desirable abrasives for specific types of grinding.
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