短語詞組短語branch sinuatrial node 竇房結支branch atrioventricular node 房室結支branch h node 分支節(jié)點Branch -Type Node 稱爲枝型節(jié)點branch of atrioventricular node [解剖]房室結支;房室結支branch node of tree 樹的分支點branch node list 分支節(jié)點表branch of sinuatrial node [解剖]竇房結支branch node of a tree 樹的分支節(jié)點 返回 branch node