The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.
维管形成层向两侧延伸直至形成一个茎内的分生组织环，各个维管束被束间形成层联系在一起。
The vascular bundles of the primary structure in stem are ring arranged, and the node is unilacunar and 3-traced, which is from three vascular bundles or one vascular bundle.
茎的初生结构中多个维管束排列成环状，节部为单隙三迹，叶迹分别来自于3条维管束或同一条维管束。
Discussing several ordinary processing technologies of valve seat ring and valve stem guide hole of cylinder head now.
对目前气缸盖气门座圈和导管孔的几种一般加工工艺进行讨论。
Start stem O-ring seal over stem, then press into position as handle is pressed down over stem.
从阀杆上的阀杆O形环密封开始，然后在手柄安装在阀杆上后，将其压进手柄的位置上。
Three O-ring seals on the stem to ensure sealing performance more effectively.
阀杆密封采用三道“O”型圈，使密封性能得到更有效地保障。
Analyzing the many factors of affecting the processing precision of valve seat ring and valve stem guide hole of cylinder head.
对影响气缸盖气门座圈和气门导管孔的加工精度的诸多因素进行分析。
The study on the stem secondary xylem of Lonicera maximowiczii, reveals the wood belongs to ring porous wood.
研究紫枝忍冬茎次生木质部结构，其为环孔材。
Artefacts dated Songze Culture including pottery stem cup, pot, cauldron, jade slotted ring and stone axe were yielded within the housing feature.
经初步清理，房址内出有崧泽文化早期的陶豆、罐、釜和玉玦、石斧等器物。
Artefacts dated Songze Culture including pottery stem cup, pot, cauldron, jade slotted ring and stone axe were yielded within the housing feature.
经初步清理，房址内出有崧泽文化早期的陶豆、罐、釜和玉玦、石斧等器物。
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