基本解释双束支词组短语短语Bifascicular block 双分支传导阻滞;双分支阻滞;简称双分支阻滞;双支阻滞heart bifascicular block 双支传导阻滞masked bifascicular block 伪装性双分支阻滞intraventricular bifascicular block 室内双支阻滞intra -ventricular bifascicular block 室内双支阻滞专业释义医药科学双束支