英语语法分析

The mesophyll consists of two layers of palisade parenchyma.

叶肉是由两层栅栏薄壁组织组成。

Within the epidermis develops a ring of parenchyma cells, the cortex.

在表皮细胞内有一个质壁细胞环，即皮层。

Secondary xylem consists of pitted vessels, parenchyma fibers and rays.

次生木质部由孔纹导管、 薄壁组织及射线所组成。