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1·Erenow, it has not been found that the application was reported in which the multivariable model was identified and both bending and torsional modes were depressed.

在此之前，并未见到针对柔性结构建立多变量辨识模型，对弯曲和扭转模态都进行抑制的实际应用的例子。

2·Erenow, no matter what is ancient Greece philosopher, or is Arabic philosopher, basically confined to category of theological problems. Ibn Khaldun consider to study this existent world to people.

在此之前，无论是古希腊哲学家，还是阿拉伯哲学家，基本上局限在神学问题的范畴内，而伊本·赫勒敦认为，要研究人们所生存的这个世界。