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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Finally the effect of refractive index gradient on the wave surface quality of laser beam is discussed.

讨论了折射率梯度对传输激光波面质量的影响和波面补偿的可能性。

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In this paper, the method for drawing grid-based terrain, contour, and velocity field and wave surface are studied.

本文研究了计算网格地形、波高等值线、速度场和波面的可视化。

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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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