冲击试验时,接点不应产生振动和鸟啄现象。
During impact test, no vibration and bird pecking phenomenon at contact point.
针对泵机组的各部件存在的振动,分析了产生振动的原因。
由声学的基本原理可知:产生噪声的根本原因是振动。
Due to the basic theory of acoustics:the fundamentality reason of noise is vibrate.
声音因振动而产生,是一种能量。
重点是振动刺激必须是随机产生,换言之,也就是杂乱无章。
The key is that the vibrations must be random—or, put another way, noisy.
声波是由振动的物体产生。
爆炸产生的振动波从水传递到肉。
Shock waves from an explosion travel through water to the meat.
爆炸产生的振动波从水传递到肉。
Shock waves from an explosion travel through water to the meat.
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