The accuracy of modal parameter estimation plays a crucial role in flutter boundary prediction.

准确估计模态参数在飞机颤振边界的预测中具有重要意义。

youdao

The sound of his voice in the hall made her heart flutter.

他在大厅中讲话的声音使她的心怦怦直跳。

《牛津词典》

They flutter through our dreams at night, they fly with us in our wheelings and circlings by day.

它们在夜里拍着翅膀，飞过我们的梦，在白天，它们和我们一起在天上盘旋。

youdao

But across their surfaces, dragons writhe through mountains, bamboo leaves flutter in the moonlight and cranes soar through clouds.

FORBES: Art and Seoul

Everywhere you look, lines of colourful prayer flags flutter in the breeze and prayer wheels spin as the water flows beneath them.

BBC: The return of China��s wild panda

And when they occasionally broke the shackles with a foray forward they certainly caused the odd flutter in the Tottenham defence, their best effort of the first half coming when Michael Dawson did well to bravely block from Gretar Steinsson's shot.

BBC: Tottenham 1-0 Bolton