branchia鳃branchn.分部；部门；分店；分支；树枝v.分岔；分支branches of left pulmonary artery左肺动脉分支branching portion of A-V bundle房室束分支段branch transient potential energy支路势能branch retinal artery obstruction视网膜分支动脉阻塞branch out in different direction向不同的方面发展Branched support double line arms分支撑双管臂brancher glycogen storage disease糖原贮积症(Ⅳ型)Branchlets with chambered pith.小枝有分室的髓；branchy structure of mantle plume幔枝构造branch exchange of city telephone市内电话支局