Because of large scale variance of parameters and nonlinearity of the object, there are many difficulties in tuning of the controller.

由于对象存在着非线性特性及参数变化范围大等特点，给控制器参数的工程整定带来很大困难。

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General spatial analytical method include geostatistics, spatial autocorrelation, fractal dimension, trend surface analysis, scale variance analysis.

常用的空间分析方法有地统计学、空间自相关分析、分维数分析、趋势面分析、尺度方差分析等。

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General spatial analytical method include geostatistics, spatial autocorrelation, fractal dimension, trend surface analysis, scale variance analysis.

常用的空间分析方法有地统计学、空间自相关分析、分维数分析、趋势面分析、尺度方差分析等。

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