城市防洪标准根据城市的重要程度、所在地域的洪灾类型，以及历史性洪水灾害等因素，而制定的城市防洪的设防标准。
本文将介绍国内外城市防洪标准及我国城市洪灾概况和现有防洪标准。
In this paper the city flood control standards at home and abroad are presented and the flood damages occurred in our country are summarized.
城市防洪规划的首要问题，就是选择合理的防洪标准。
The most important problem of city flood-control planning is to choose reasonable flood-control standard.
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