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 cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.
铁反应元件(IRE)具有的高度保守的RNA茎环结构，是胞质中IRE结合铁调控蛋白(irp)的位点。
The iron response element (IRE) is a highly conserved RNA stem loop structure. It is the binding site of iron regulatory protein (IRP).
约82 %的分枝点a位于环区或环与茎的连接部位。
About 82% of the branch point "a" s are situated in loops or.
结果表明，烧伤柳茎或盐胁柳根引起的变异电波，可以通过环剥后的木质部再横向传递至韧皮部（树皮），被表面电极记录下来。
The result declares that transmission of VP in willow stem (salix babylonica) plantlet can be evoked by treating the wood with Naclsolution or by a local burn on the stem.
茎中维管束环外有糊粉层。
There is the aleurone layer outside the bundle ring of the stems.
茎中维管束环外有糊粉层。
There is the aleurone layer outside the bundle ring of the stems.
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