英语词汇“protophloem”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	protophloem
释义	Word Frequency protophloem (ˌprəʊtəʊˈfləʊɛm) noun botany the earliest-formed elements of the primary phloem, the cells of which reach maturation before the elongation of the surrounding tissue
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