模态试验边界转换的问题，始终是航空航天界关心的课题之一。

For the problem of the mode test boundary transformation, it has been one of the topics concerned in aviation and spaceflight field all the time.

youdao

模态试验边界转换的问题，始终是航空航天界关心的课题之一。

For the problem of the mode test boundary transformation, it has been one of the topics concerned in aviation and spaceflight field all the time.

youdao