insecticidal crystal proteins 基本例句 杀虫晶体蛋白 In the past few years, some new Bacillus thuringiensis pesticidal crystal protein genes and some new groups of microbial pesticidal protein genes have been identified and cloned.在过去几年中,已经鉴定并克隆出一些新的苏云金芽孢杆菌杀虫晶体蛋白基因和其他类型的微生物杀虫蛋白基因。