Biju比朱Bin.[化]元素铋(bismuth)的符号bi-: pref.；表示“二；双”bipartite agreement双方协定bi-lingual system双语制bireactant reaction双反应体反应birefringence fiber双折射光纤Biesiadecki's fossaBicyclic semigroups双循环半群biramous parapodium双叶型疣足(动)biplanar photodiode双平面光电二极管Biphasic Regulation双相调节作用bimetallic standard复平位