From flume experiments and aeroplane photographs of the coast, one can see the existence of sand wave induced by the reflection wall.

水槽实验和海岸高空照片资料上清楚的分辨出这种由反射壁效应产生的沙波的客观存在性。

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The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.

有含湿砂层存在的被动蒸发冷却层屋面的温度波衰减，在本质上不同于干燥状态情况。

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The systematic study has been made on the problems of wave, nearshore currents, sediment transport related to the coastal evolution of sand beach under the action of wave.

针对与砂质海岸在波浪作用下的演变有关的波浪、近岸流及输沙问题进行了系统的研究，并对结构物附近海岸演变进行了数值模拟。

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Just a few miles from the slide which spurt Rob Wishon into a wave of sand is Pacheco Elementary School, a charter school in the college community of San Luis Obispo california specializing in a two way immersion program.

FORBES: Bootstrapping A Child's Education - California's DIY School

Berm crest: ridge of sand or gravel deposited by wave action on the shore just above the normal high water mark.

UNESCO: L O S S A R Y

Sand bar: accretionary deposit of sand formed across a river mouth or bay by wave action and joined to the shore at both ends.

UNESCO: L O S S A R Y