baumn.射频阻抗匹配变压器BAabbr.(=bachelor of arts) 文学士abbr.(=batting average) 击球率abbr.(=Buenos Aires) 布宜诺斯艾利斯abbr.[国家域名]波黑（=Bosnia and Herzegovina）Bauach fixed point不动点Bai Lang Rebellion白朗起义Bavarian pine volen.巴伐利亚松田鼠Baoan ethnic group保安族Baishuijiang Group白水江群Baiziyangxin Pills柏子养心丸baffic arrangement[机] 挡板排列法, 折流板排列法Baikal betony herb水苏Baisha river basin白沙河流域bauschinger effect包辛格效应,鲍氏效应,瓦伍辛格效应,巴斯青格效应,包申格效应