The xylem of ferns only contains tracheids.
蕨类植物的木质部只含有管胞。
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。
It is found in protoxylem and first metaxylem tracheids and vessels.
可在原生木质部和初始后生木质部的管胞和导管中见到。
Ultrasonic emission is a phenomenon with cavitation of vessels or tracheids.
植物的超声发射是导管或管胞里空穴化时的伴随现象。
Annular thickening rings of thickening laid down on the inner wall of protoxylem vessels and tracheids.
环状加厚：原生木质部导管和管胞的内层环状増厚。
There are significant difference in tracheids' length and width and height of wood ray comparing with healthy tissues.
与健康组织相比。其管胞的长、宽和木射线高度均差异显著。
The supporting and water-conducting tissue of vascular plants, consisting primarily of tracheids and vessels; woody tissue.
木质部在维管束植物中的起支撑作用和输水作用的组织，主要由管胞和管道组成；
Parenchyma in gall tissues were observed to occur hypertrophy or hyperplasia, and vertical tracheids in gall xylem were short and abnormal in shape.
瘤组织中的薄壁细胞均增生肥大，木质部的垂直管胞发生变形且变短。
There are different types of pit-pair between the axial tracheids. the axial tracheid and the ray parenchyma, the axial tracheid and the ray tracheid.
轴向管胞之间、轴向管胞与射线薄壁细胞之间、轴向管胞与射线管胞之间，均有不同类型的纹孔对。
There are different types of pit-pair between the axial tracheids. the axial tracheid and the ray parenchyma , the axial tracheid and the ray tracheid.
轴向管胞之间、轴向管胞与射线薄壁细胞之间、轴向管胞与射线管胞之间，均有不同类型的纹孔对。
Tranfusion tissue is present in the leaf of yew. it is composed of three sorts of cells: transfusion tracheids transfusion parenchyma cells and albuminous cells.
在红豆杉的叶子中存在传输组织，它由传输细胞、传输薄壁组织细胞和蛋白细胞组成。
In situ imaging nanoindentation was used to characterize the differences in longitudinal Modulus of Elasticity (MOE) and hardness of different cell wall layers of softwood tracheids.
该文利用原位成像纳米压痕技术研究了针叶材管胞细胞壁不同壁层之间在纵向弹性模量(MOE)和硬度方面的差异。
In situ imaging nanoindentation was used to characterize the differences in longitudinal Modulus of Elasticity (MOE) and hardness of different cell wall layers of softwood tracheids.
该文利用原位成像纳米压痕技术研究了针叶材管胞细胞壁不同壁层之间在纵向弹性模量(MOE)和硬度方面的差异。
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