Noun:

1. the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels

xylenen.二甲苯XXXn.(青少年禁看的)X级片或内容num.罗马数字 30xylem sap木质部汁液xylem ray木质部射线,木射线xylem wood木部xylem core木质部中心xylem cell管胞xylem rays[医] 木射线xylem fibre木纤维xylem fiber木纤维xylem island木质部岛xylem bundle木质部束,木质部维管束

1. Lignified tissues include SCLERENCHYMA and XYLEM.
   木质素组织包括厚壁组织和木质部。
2. The xylem of ferns only contains tracheids.
   蕨类植物的木质部只含有管胞。