英语词汇“point group”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	point group
释义	WordReference Random House Unabridged Dictionary of American English © 2024 point′ group′, [Crystall.] Crystallographya class of crystals determined by a combination of their symmetry elements, all crystals left unchanged by a given set of symmetry elements being placed in the same class. Also called symmetry class. 1900–05
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