It's common to design the value of control parameters by method of trial and error, which is hard to acquire satisfactory results.
通常用试凑的方法设计控制器参数，往往难以达到最佳效果。
The algorithm can recognize the excellence and worseness of different processing route by trial-and-error method.
算法利用试错，区分加工路线的优劣。
Secondly, the TCN treatment consists of dynamic adjustment and trial and error method.
二是中药治疗方法中包含一种做法，就是动态调整和试错。
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