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单词	phloem
释义	phloem /ˈfləʊɛm / noun [mass noun] Botany The vascular tissue in plants which conducts sugars and other metabolic products downwards from the leaves.The conducting tissues within the vascular bundles are the xylem and phloem.... For the stem, the outermost green tissue, including both phloem and cambium were estimated. Root tissue samples are hereafter referred to as periderm, phloem and xylem. Origin Late 19th century: from Greek phloos 'bark' + the passive suffix -ēma.
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