xylem meaning in English
n.
【植物；植物学】木质部。 xylem ray 木射线。
Examples
- The xylem of ferns and conifers contains only tracheids .
蕨类植物和针叶树的木质部仅含有管胞。 - Sapwood contains xylem vessels, but not as strong as heartwood .
边材含有木质导管，但不如中心木质那样坚硬。 - 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。 - A system confined to the transport of mineral elements is known as the xylem .
专门用来运输矿物元素的系统称为木质部。 - 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。