求翻译：因此，直接依据小波变换系数不能直接判断该结构是否出现了损伤及损伤位置，说明该方法仅适用于简单结构的损伤识别，对于刚度非均匀的复杂结构是无能为力的。是什么意思？

Therefore, directly based on wavelet transform coefficients can not directly determine whether there is damage to the structure and location of injury, indicating that the method applies only to simple structural damage identification, for the complex structure of non-uniform stiffness is powerless.

It is therefore directly based on wavelet transform coefficients cannot directly determine whether the structure has emerged, injury and damage location description is only applicable to the method of simple structure, injury to identify non-uniform stiffness is powerless in the complex structure.

Therefore, whether couldn't judge this structure directly based on the wavelet transformation ratio to appear directly has damaged and damages the position, explained this method was only suitable for the simple structure damage recognition, regarding the rigidity inhomogeneous complex structure was

Therefore, directly based on the wavelet transform coefficients cannot directly determine whether the structure of the damage and injuries occurred, a description of the method is only for simple structure damage identification, for complex stiffness of non-uniform structure is powerless.

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