Birz比尔兹Bin.[化]元素铋(bismuth)的符号bi-: pref.；表示“二；双”bicubic B-spline surface双三次B样条曲面Biphasic expiratory neuron双相呼气神经元bi-lumen intestinal tube双腔肠管bi - directional antenna双定向天线bipotentiometric titration[化] 双指示电极电位滴定; 双指示电极电位滴定法bifunctional ion exchanger双官能离子交换剂birefringent calcite prism双折射方解石棱镜bifunctional air electrode双效空气电极Bi-directionally pumping双向泵浦bifilar vibration absorber双线振动阻尼器