Biku比丘(姓,日本)Bin.[化]元素铋(bismuth)的符号bi-: pref.；表示“二；双”bicyclic graphs双圈图bi-layer film双层膜birotary engine双转子发动机bilinear paring双线性对bi-population双群体Bifidobactorium双歧杆菌DNAbiligrafinforte胆影葡胺bimetal casting双金属铸造bicornis uterus双角子宫bilinear system双线性系