为进一步鉴定、分析和评价分离于鸡粪便的13株芽胞杆菌，根据枯草芽胞杆菌16 S rRNA 序列设计特异性引物，PCR 扩增13株分离于鸡粪便的......

Reinforcement quality evaluation at the abutment is an important research direction.Prototype monitoring and theoretical......