Please turn off your cell phones or switch to vibration mode.

请关掉你的手提电话或转作震动模式。

Oh, it is my cell phone ringing. I set it in the vibration mode.

噢，我的电话在响。我设成振动模式。

It automatically switches off the sound and puts itself into vibration mode.

它会自动关闭声音，进入振动模式。

Then the natural frequency and correspondent vibration mode are gained.

从而可求出固有频率及相应的振型。

In this paper, the vibration mode shape measuring principle for the blade is presented.

本文简要介绍了振型测量的基本原理。