英语词汇secondary medullary rays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	secondary medullary rays
释义	secondary medullary rays 简明释义次生髓质射线，次级髓质射线双语例句 1 It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth. 维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
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