Shock Waves

基本解釋

Shock waves are just a particular kind of pressure wave - which is what sound itself comprises.
沖擊波只是壓力波的一種特定形式- 它是聲音自身所包含的。
Shock waves can form when energy is quickly put into a confined channel; weak shock waves can be formed as trains enter tunnels.
當能量在瞬間通過一個限制性通道時，沖擊波就會形成；火車在穿越隧道時就能產生微弱的沖擊波。
Hills, valleys and other terrain features can create multiple reflections of the shock waves and affect intensity.
山丘、河谷和其它地貌特征會造成多種沖擊波的反射并影響其強度。

Pulleys,axles and shock absorbers document researchers' efforts to deal with the rolling waves.

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Coming after decades of steady growth, these figures sent shock waves through the academic system.
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