圩堤 的英文怎麼說
中文拼音 [wéidī]-
The dike - break long waves cause great damage to polder, and then it is a significant subject for studying the dike - break long wave. it is significant of research for the propagating of the dike - break wave
河堤潰決后的潰堤波會對圩區造成很大的危害，對潰堤波的研究是一個重要課題，研究其演進過程具有重要意義。In the paper, river and the downstream area of dike are regarded as a whole system, and hydraulic model of coupling 1 - d river and gradual dike - break is established, therein the preissmann implicit difference scheme is applied to main river, and the fvm ( finite volume method ) is applied to the breach and polder
本文將河道與堤壩下游區域視為一個整體，對于單一河道採用preissmann四點隱式差分格式計算，對于潰口及圩區採用有限體積法，建立了一維河道與堤壩漸潰耦聯的水力模型，也是一維、二維耦合的水流模型。In addition, water control projects such as gates, pumps, polders and dikes spread all over the basin. all these bring more difficulties to scheme making for flood broadcasting and prevention as well as disaster reduction
再加上流域內水工控制建築物（閘，泵，圩，堤等）星羅棋布，給流域內洪水預報和防汛減災方案的編制帶來了一定的難度。
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