目的：建立一种高效、快速的大肠杆菌感受态细胞制备及质粒转化的方法。
Objective: To establish an efficient and rapid method for the preparation and transformation of competent cells from Escherichia coli.
目的：建立一种高效、快速的大肠杆菌感受态细胞制备及质粒转化的方法。
Objective: To establish an efficient and rapid method for the preparation and transformation of competent cells from Escherichia coli.
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