Bakr贝克尔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）Baja California rock squirreln.加利福尼亚半岛黄鼠Baeulovirus expression system杆状病毒表达系统Baos- han-Zhenkang Massif保山-镇康地场面Baiyangping east ore district白秧坪东矿区Baerzhe super-large deposit巴尔哲超大型矿床Baoding The Great Wall Branch保定长城分公司Baotou rare earth concentrate包头稀土精矿BA Sport and Coaching Studies运动与教练研究Bajiaoting wet gas compressor八角亭平台湿气压缩机Bauman-Witebasky phenomenon鲍-维现象(免)