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- 二次PCRtwo-step PCR
- 二two
- 一次PCR扩增单纯疱疹和巨细胞病毒基因的检测方法PCR ASSAY FOR DETECTION OF HSV AND CMV IN ONCE PCR REACTION TUBE
- 二次adratic quadrate
- 所以使用这两对引物进行两次PCR反应可将目标菌Cur.By using these two primer pairs and two times of PCR protocols, Cur.
- 二次开发secondary development
- 二次方程quadratic equation
- 染色体DNA经Sau3A酶切后与人工合成的Sau3A连接接头连接，经两次PCR扩增获得足以用于构建单染色体DNA文库的扩增产物。After chromosome DNA was digested by Sau3A, chromosomeDNA fragments were ligated to Sau3A linker-adaptor, then amplified by two roundPCR PCR preducts were enough to construct a library of specific chromosome.
- 二次曲线conic
- 二次创业start a new undertaking
- 二次回路secondary thermal system
- 二次侧secondaly side
- 二次电池storage battery
- 尽管他一年中到南利兹选区访问仅一到二次，但那儿的选举区一直为他保留着。His constituency at South Leeds was being kept warm for him although he was able to visit once or twice a year.
- 二次方程式quadratic
- 二次曲面conicoid
- 二次能源secondary energy sources
- 美国家庭主妇可能一星期只购物一、二次。The American housewife probably goes shopping only once or twice a week.
- 二次谐波secondary harmonic
