英语词汇“primitive costal arch”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	primitive costal arch
释义	primitive costal arch primitive costal arch n. Any of the arches formed from the costal processes or elements that give rise to the ribs in the thoracic region of the embryonic vertebral column.
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