Due to the influence of the vdriation of the temperatures of the surrounding air and water in the reservoir, the decks and the buttresses of a buttress dam often have different temperatures.

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Hurricane Gustav is sending water rush ing up and over New Orleans' Industrial Canal's floodwall.

颶風(fēng)帶來(lái)水平面上升，已超過(guò)orleans's 工業(yè)運(yùn)河的坻壩三级影音先锋。

According to the basic equations derived under the two assumptions by Harold Lauffer—(1) the energy head of every point of a vertical section remains constant,(2) the flow lines are concentric circular arcs,this paper qives a comprehensive deduction of curvature effect in the characteristics of free overflow of round-crested spillway.118 runs of experiments of three round-crested spillway models of different size have been conducted by the author.

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