The anatomical structure of Tussilago farfara L. vegetative organs showed that its structure of root is a typical structure of dicotyledonea. Its primary xylem is quadriarch ones.
对款冬营养器官解剖结构研究表明：根为典型的双子叶植物根的结构，初生木质部四原型；
Objective to study the anatomical factors of vertical root fractures (VRFs) on vital pulp of maxillary first molar.
目的分析活髓下颌第一磨牙根纵裂的解剖学病因。
When the biochar added more than 10.0%, all the indexes of anatomical structure of root had a descending trend.
当生物炭添加量超过10.0%时，根系解剖结构性状指标也有下降趋势。
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