excere bration 去脑术

bration tachometer 振动式转速计

pipe vi- bration 管道振动

bration control system 柔性转子振动控制系统

bration-proof structure 防振结构

multiple-frequency vi-bration 倍频振动

vi-bration-proofing foundation 防振基础

once per revolution vi-bration 同频振动

Extensional-torsional couple vi bration 拉扭耦合振动