Noise coming from under instrument panel - sounds like a midget pounding on something with a hammer.
仪表板后有响动，就像矮人在用锤子乱敲一样。
Mechanical factors effecting on the vibration noise and resonance performance of IR detector were analyzed for the method of impact excitation using a hammer.
采用锤击法，利用冲击激励的宽频特性，研究了金属结构红外探测器的共振特性及影响振动噪声的力学因素。
A water hammer arrester will absorb the shock and minimize the slam noise.
水锤消除器可以吸收水锤撞击和减少拍打的噪音。
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