biyu比喻Bin.[化]元素铋(bismuth)的符号bi-: pref.；表示“二；双”bi-tunnel spillway双洞式溢洪洞bicontinuous mapping双连续映像biped erection robot双足直立机器人bilirubin glucuronid胆红素葡糖苷酸bifunctional monomer双官能基单体biebrich scarlet red猩红(用于烧伤和溃疡的抗菌药, 脂肪染色剂)bifurcating solution分歧解bipole level control双极层控制bi-terminal handle双极电凝手柄bifurcatio carotidis颈动脉杈