基本解釋[醫(yī)藥科學(xué)]分支部詞組短語短語branching portion his bundle 希氏束分支部branching portion of his bundle 希氏束分支部branching portion of a -v bundle 房室束分支段branching portion更多詞組專業(yè)釋義醫(yī)藥科學(xué)分支部