同一台车，整车结构发生变化时会改变前轮摆振的激烈程度以至振动的性质。
For the same automobile, the vibration degree or even the type of front wheel shimmy will change with the changing of the whole automobile constructs.
本文以一台车用六缸柴油机为例，研究了发动机的表面振动和发动机的表面辐射噪声。
An experimental study on engine surface vibration and radiated noise is carried out in this paper.
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