phloem ['fləuem]

单词级别

附加级

基本释义

n.[植]韧皮部

参考例句

Phloem elements and adjacent tissues are the principal feeding sites for most aphids. 韧皮部及其邻近组织是大多数蚜虫的主要取食部位。
The stele includes all primary tissues derived from the procambium consists of pericycle,phloem and xylem. 中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。

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