N a vascular bundle connecting the vascular tissue of the stem with that of a leaf 叶迹 [botany]
These parts of bundles in the stem be regarded as leaf trace.
这种维管束斜生于茎内的部分，称为叶迹。
The article proposes the experimental method of observing the spatial structure of plants leaf trace and leaf crack.
通过实验研究提出了观察植物叶迹、叶隙立体结构的方法。
Life is like a trace of roaming cloud, and also like a piece of fallen leaf; cloud perched with sky is transient and leaf depended on tree is in a rush.
人生如同一丝游云，一片落叶；云与天宇的相栖是暂短的，叶与树相依是匆匆的。
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