Bieg比格Bin.[化]元素铋(bismuth)的符号bi-: pref.；表示“二；双”biacromial width肩宽bipennate muscle羽肌biaxial crystals双轴晶体Bicopper Complex双核铜配合物bifurcate musseln.双叉隔贻贝bi-peak method双峰法bicyclic sulfide二环硫化物Bicornate uterus双角子宫biparental males双亲雄体biconcave mirror双凹镜