Bieg比格Bin.[化]元素铋(bismuth)的符号bi-: pref.；表示“二；双”bipedal dinosaur双足恐龙bi-signal zone等强信号区,双信号区bi-refringence双折射Bi-Steel beams双层钢梁bi-arch tunnel联拱隧道bicharacteristic双特征bipartite graphs二部图bicycloalkylthion.双环烷硫基bipyridylium ion联吡啶离子Birlard's hernia