1.
Of or relating to a xylem whose early development is toward the center.
木质部的木质部或与木质部相关的，其早期发展是朝向中心的
2.
The secondary xylem of trees and shrubs, lying beneath the bark and consisting largely of cellulose and lignin.
木质位于树皮下的树和灌木的次木质部，主要由纤维质和木质构成
3.
The first formed xylem that differentiates from the procambium.
原生木质部最先形成的木质部，与原形成层不同
4.
a plant having hard lignified tissues or woody parts especially stems.
具有硬的木质化组织或茎部是木质部分的植物。
5.
The part of the primary xylem that differentiates after the protoxylem and is characterized by broader vessels and tracheids.
后生木质部初生木质部中不同于原生木质部的一部分，以更宽的导管和管胞为特征
6.
Primary xylem Xylem derived from the procambium in the young plant.
初生木质部：指幼嫩植物中来源于原形成层的木质部。
7.
Relationship between Xylem Embolism and Hormone Concentration in Xylem Sap of Acer truncatum
元宝枫木质部栓塞化与木质部汁液激素含量的关系
8.
Protoxylem The PRIMARY XYLEM elements that are formed from the procambium first.
原生木质部：初生木质部的成分，最早由原形成层形成。
9.
Observation and Study of Vessel Elements of Secondary Xylem in Bombax malabaricum;
木棉Bombax malabaricum次生木质部导管分子观察研究
10.
Observation and Study of Vessel Elements of Secibdart Xylem in Aquilaria Sinensis;
白木香Aquilaria sinensis次生木质部导管分子观察研究
11.
Several Supplementary on the Embolism Forming and Repairing in Xylem of Woody Plants
木本植物木质部栓塞的形成和修复的几点补充
12.
juvenile period
幼年期(构成中心木质部的一段时期)
13.
A cell in the xylem of vascular plants.
管胞在维管植物的木质部中的细胞
14.
Robinia Xylem Embolism and Its Ecophysiological Characteristics;
刺槐木质部栓塞与生理生态特性研究
15.
The Study of the Cell Structure in the Secondary Xylem in Three Invasive Plant Varities
3种入侵杂草次生木质部的细胞结构
16.
It is an important pathway for movement of these substances outside the xylem, for example across the root cortex.
质外体是木质部外方物质运动的一个重要途径，例如物质穿过根冠。
17.
In older stems, only the most recent rings of xylem participate in the transport of materials. These make up the sapwood.
在老茎中，仅最新的木质部环参与物质的运输。这些木质部环组成边材。
18.
If timber poles are used, the bark can be peeled off the tops to expose the light colored sapwood.
如用圆木杆，可削去顶端树皮，露出木质部的明亮色泽。