英文字典中文字典Word104.com
|
octad n. 八個一組,八價元素 八個一組,八價元素 octad n 1: the cardinal number that is the sum of seven and one [synonym: {eight}, {8}, {VIII}, {eighter}, {eighter from Decatur}, {octad}, {ogdoad}, {octonary}, {octet}] Octad \Oc"tad\, n. [Gr. ?, ?, the number eight.]
1. (Chem.) An atom or radical which has a valence of eight, or is octavalent. [1913 Webster] 2. A group of eight things. [PJC] |
安裝中文字典英文字典查詢工具!
英文字典中文字典相關資料:
|
中文字典-英文字典 2005-2009
|中文姓名英譯,姓名翻譯 |简体中文英文字典