baccyn.烟草BACabbr.二进制-模拟转换 (=binary analogue convert)Baculovirus Expression Vector杆状病毒表达载体bacteriological contamination细菌污染bacteria-inducible promoter细菌诱导型启动子Bactericidal chemical product杀细菌化学制品bacteria activity measurement活性测定Bacteriological investigation细菌学调查baculovirus expression system杆状病毒表达系统bacteriologic grading of milk按含菌数的奶品分级bacteriophage incompatibility细菌噬菌体不亲和性baccalaureate nursing students护理本科生