本文以现代控制理论为基础，选用二次型性能指标设计可控硅直流调速系统。
On the basis of modern control theory, the quadratic performance index was selected to design SCR DC speed-adjusting system.
本文以现代控制理论为基础，选用二次型性能指标设计可控硅直流调速系统。
On the basis of modern control theory, the quadratic performance index was selected to design SCR DC speed-adjusting system.
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