The simulation result shows that proportion differential control can improve the system stability and steering portability, and inhibit the vibration of steering wheel with big power ratio.
仿真结果表明，比例微分控制在提高转向轻便性的同时能改善系统的稳定性，抑制大助力比例系数下转向盘的振动。
By centrifugal selection, differential paces of sticking to wall and medical inhibit method, purification of cardiac myocytes reach to 95 %.
进一步通过离心、差速贴壁和化学试剂抑制非心肌细胞生长，纯化得到95%以上的心肌细胞。
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