城市防洪标准 flood control standard

防洪标准 [水利] flood control standard ; Standard for flood control ; criterion of flood control

标准计划洪水 standard project flood

设计洪水标准 standard of design flood ; Design Floods

设计基准洪水 design basis flood

标准设计洪水 [水利] standard project flood ; standard design flood

洪水设计标准 design standard of flood control

标准洪水 standard flood

标准预估洪水 standard project flood