通过转动电场的极性，DNA链会渐进式地前进，一次一对碱基对。
By flipping this field's polarity the DNA strand can be ratcheted along, one base pair at a time.
结果表明：参与式培训模式在调动学员积极性、提高素质、优化能力结构等方面效果较好。
Conclusion shown: The Participating Training mode plays a very important part in arousing teacher's enthusiasm, improving quality, optimizing the structure of ability.
汽巴公司发明了用极性电压法控制连续重氮化过程中亚硝酸盐加入速度的探测系统，赫斯特公司发明了连续式偶合装置。
Ciba has developed a nitrite feed rate gauge system for controlling process of continuous diazotization by polar voltage method, and Hoechst has developed newly an equipment for continual coupling.
应用推荐