该指标对结构损伤具有很高的灵敏度，而且仅需低阶模态信息即可获得很好的识别效果。

This index had high sensitivity to the structural damage and had good effects only in the need of the low-order modal information.

youdao

该指标对结构损伤具有很高的灵敏度，而且仅需低阶模态信息即可获得很好的识别效果。

This index had high sensitivity to the structural damage and had good effects only in the need of the low-order modal information.

youdao