英语词汇“secondary arch”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	secondary arch
释义	secondary arch rear arch 1. An inner arch of an opening which is smaller in size than the external arch of the opening and may be different in shape. 2. See arrière-voussure.
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secondary arch