英语词汇primary xylem怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	primary xylem
释义	primary xylemn.Botany（名词）【植物学】 A type of xylem tissue derived from the procambium.初生木质部：由原成层转变而成的木质组织种类
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