A vibration, by its nature, is back and forth, a pull and release with bounce back and a return to a pull.

振动的本质就是来来回回，牵拉再释放使其反弹再牵拉的过程。

youdao

A vibration, by its nature, is back and forth, a pull and release with bounce back and a return to a pull.

振动的本质就是来来回回，牵拉再释放使其反弹再牵拉的过程。

youdao