Computation of erosion and deposition on the bed surface is a foundation of predicting bed variations in rivers, estuaries and seas.

冲淤计算是河流、河口、海岸等水域中分析、预测床面变化的基础。

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The bed surface rotating device is connected with the bed surface.

床面旋转装置连接床面。

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The test operation result of dynamic ignition of CFB bed surface by oil gun was summarized briefly.

简要总结了循环流化床锅炉床面油枪动态点火试验运行情况。

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Water hyacinth grows into a thick bed of waxy leaves and violet flowers that cover the surface of the lake.

CNN: Flower power threatens Kenya's Lake Victoria

In an effort to mimic the soft exterior of a real bed, Mr. Fischer coated one of the bed sculptures with white paint but then interrupted the smooth surface by pouring a pile of real concrete over it, weighing down one side of the sculpture's surface.

WSJ: Urs Fischer's Beds & Problem Paintings Show in Beverly Hills

There are river channels and flood plains galore on the planet's surface, and even a hemisphere-wide depression that many interpret as an ocean bed.

ECONOMIST: A drought on Mars