本文比较详细地介绍了基于模态理论的无损探伤方法，即频率法、能量法、柔度矩阵法等。

In the paper, some non-destructive methods based on mode theory such as frequency method, energy method and matrix method are introduced.

youdao

本文比较详细地介绍了基于模态理论的无损探伤方法，即频率法、能量法、柔度矩阵法等。

In the paper, some non-destructive methods based on mode theory such as frequency method, energy method and matrix method are introduced.

youdao