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单词 diad
释义 di·ad
I. \ˈdīˌad, -īəd\
variant of dyad
II. adjective
also dy·ad \“\
Etymology: diad (I)
crystallog : having symmetry that results in repetition after every 180° rotation
 < a diad axis >
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更新时间:2024/11/11 18:42:55