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1·Therefore, it is of great significance to study the routing characteristics of flood caused by levee breach.

因此，研究堤防溃决之后洪水在城区内的演进规律具有重要的现实意义。

2·The developed 2d model was then applied to describe possible flooding events due to levee breach in Harbin city. The results show that the model can simulate the levee-breach flood well.

鉴于此，采用本文二维水流模型对哈尔滨市可能发生的溃堤洪水进行了数值模拟，模型比较合理的模拟了城区溃堤水流的运动，所得的结果合理可靠。

3·The Mississippi River crested at Vicksburg yesterday at a record high of 14.1 feet above flood stage, but did not breach the main levee or inundate the city.

昨天密西西比河洪水到达维克斯堡的水位超出警戒水位14.1英尺，但是并没有损坏主堤，也没有淹没整个城市。

4·Analysis of flood release capacity of upstream detention areas and the probable maximum flood reveals that the risk of levee-breach in Harbin city still exists.

对哈尔滨上游蓄滞洪区的分洪能力以及可能发生的最大洪水进行了计算和分析，得出的结论认为哈尔滨市未来仍有发生溃堤的可能。