詞語：triarch
triarch的意思
triarch 三原型;三芒型;(根)三束木質組織;
triarch的參考例句
1.The adventitious root is triarch, and has the secondary structure. 不定根為三原型，具次生結構。
2.The results showed that the primary xylem of the root is diarch, triarch and tetrarchy; 結果表明：根的初生木質部為二原型、三原型和四原型；