complex vibration

例句：

1. 1.The complex vibration of the building caused by the wind is audible from outside.
   由于风的作用，建筑物的复杂振动从外面可以听到。
2. 2. The engineer used a complex vibration test to diagnose the problem.
   工程师使用复杂的振动测试来诊断问题。
3. 3. The complex vibrations in the air are caused by the movement of the ground.
   空气中的复杂振动是由地面的运动引起的。