英语词汇“medullary sheath”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	medullary sheath
释义	WordReference Random House Unabridged Dictionary of American English © 2024 med′ullary sheath′, Botanya narrow zone made up of the innermost layer of woody tissue immediately surrounding the pith in plants. AnatomySee myelin sheath. 1840–50
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