The full wave model phase analysis can be used to study the first motion direction of waves.

全波模型震相分析法可用来研究震相的初动方向。

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When two waves of opposite direction but similar frequency collide, they create a special kind of pressure wave that carries energy to the ocean bottom.

当两方向相反但频率相似的波浪相撞时，会产生一种特殊类型的压力波，而这种压力波会把能量输送到海底。

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Transmitters emit waves of a certain frequency in the direction of the target.

发射器朝目标方向发射一定频率的无线电波。

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The waves were huge, and each created a problem in guiding the direction of the boat.

VOA: special.2010.03.06

If that's not possible, the risers should parallel the likely direction of waves.

WSJ: Hurricanes offer similar lessons for builders

' Watching all those cars headed so purposely in one direction that was straight out of one of those thrillers about earthquakes or tidal waves or killer hurricanes.

NPR: Get Out of Town