基本解释[毉葯科學]束支主乾词组短语短語main right bundle branch 釋義右束支主乾;右束支主乾main left bundle branch 釋義左束支主乾;左束支主乾left main bundle branch block 左束支主乾傳導阻滯main bundle branch更多词组专业释义毉葯科學束支主乾