认为在各种内部极限中声速极限容易发生，而发生的地区在上升绝热管入口段。

It is concluded that among various inner limits the presence of sonic limit is...

youdao

认为在各种内部极限中声速极限容易发生，而发生的地区在上升绝热管入口段。

It is concluded that among various inner limits the presence of sonic limit is...

youdao