对我国部分省市粮食粉尘中的苏芸金芽孢杆菌（B t ）野生株的进行分离、纯化及H血清型鉴定。
To isolate the Bacillus thuringiensis native strains from warehouses grain dusts in China and analyze their H antigen serotypes.
对我国部分省市粮食粉尘中的苏芸金芽孢杆菌（B t ）野生株的进行分离、纯化及H血清型鉴定。
To isolate the Bacillus thuringiensis native strains from warehouses grain dusts in China and analyze their H antigen serotypes.
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