Shock waves can form when energy is quickly put into a confined channel; weak shock waves can be formed as trains enter tunnels.
当能量在瞬间通过一个限制性通道时，冲击波就会形成；火车在穿越隧道时就能产生微弱的冲击波。
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The floating caisson construction method can also be applied to river channel power stations, ports, offshore drilling platforms, subaqueous tunnels, Bridges, locks, etc.