通过现场实验数据，并利用最小二乘曲线拟合算法建立被控对象各通道之间的二阶系统模型。

Second: via experimental data we get the second-order system model for each control object by using least square curve simulation.

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通过现场实验数据，并利用最小二乘曲线拟合算法建立被控对象各通道之间的二阶系统模型。

Second: via experimental data we get the second-order system model for each control object by using least square curve simulation.

youdao