A circular opening in an opaque screen transmits only a small circular patch of a wave surface.

不透明屏上一个圆孔仅仅透射波面的一小圆块。

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The wave surface function can be obtained with this method to calculate the wave aberration of any point on the wave surface.

用这种方法可以得出波面函数，从而计算出波面上任一点的波差值。

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A function expansion method as in Liu et al (2007) is used to formulate the mat-type VLFS floating on the wave surface over uneven sea bottom.

采用作者们（2007）提出的函数展开法描述箱式超大型浮体漂浮在不平底部海域中的水弹性响应问题。

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That surface wave, in turn, produces another electric signal, which is emitted via the transducer.

ECONOMIST: MONITOR

The researchers believe that as the cold wave moves from the surface, the rock pore space is completely filled in.

BBC: Doubts over water on Mars

This Ocean forecasting system could generate crucial forecast information, such as ocean circulation, sea surface temperature, wave height, to serve the needs of a variety of human activities related to marine hazards mitigation, oil and gas exploration, fisheries, navigation, marine parks management and coastal recreational activities.

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