South Africa raised the flood-warning level for its central Orange River area today as water levels in places were expected to reach the highest since 1996.
南非提高了洪水警报级别，奥兰治河水位已经达到了自1996年已来的最高位。
For effective drainage therefore, the entire site should be located above flood level at a minimum of 3 m above the water table, preferably on a gently sloping area.
因此需要注意，为了保证有效的排水，整个地点应当高过洪水水位、高于地下水位至少3米，最好是在地势略微倾斜的地区。
Freezing is a general phenomenon in the cold area. Ice flood is a rise of water when ice is hindered in river course.
冰冻是寒冷地区普遍存在的一种自然现象，而凌汛则是河道里的冰凌对水流的阻力作用而引起的一种涨水现象。
The spatial distribution of precipitation is very important for integration management of water resource and flood prevention and reduction of a specified area.
降水空间分布信息是进行区域水资源管理的基础，同时也是区域防洪减灾中所需的重要信息。
Precisely predicting daily flow process is very important for guiding the management of water resources, flood control and drought fight in an area.
准确预测日径流过程对区域水资源管理和防洪抗旱决策具有重要的现实意义。
Because of the idea of water control conversed from flood control to flood management, store floodwater area is playing an important role in the contemporary floodwater prevention and control.
由于治水的理念转变，从洪水控制到洪水管理，蓄滞洪区在当代防洪中的作用和地位日益重要。
The occurrence area and species-group density was closed with water level fluctuation and flood time.
水位涨落以及淹水时间的长短与飞蝗发生的面积和种群密度关系密切；
Because of water outburst by hidden conducting Karst collapse column at the mining area of Renlou coal mine, the flood was caused in 1996, which causes losses up to 3.5 hundred million yuan.
1996年任楼煤矿首采面曾因隐伏导水陷落柱突水，引发淹井灾害，造成3.5亿元的重大经济损失。
Due to development and utilization of shallow underground water in southern flood alluvial area in the Yellow River Delta area, regional group of funnels have been formed in this area.
黄河三角洲南部冲洪积扇区浅层地下水由于长期大量开发利用，早已形成了区域性漏斗群。
The soil texture of this area is special soil-stony medium, meanwhile, traditional flood irrigation wasted lots of water resources, carrying water saving irrigation is imperative.
该地区土质特殊，为土石混合介质，同时，传统漫灌造成大量水资源浪费，开展节水灌溉势在必行。
The flood routing in the flood diversion area of Baitan Lake, in Hubei Province, is calculated by the developed plane 2-d water mathematical model for flood diversion area.
运用改进的分蓄洪区平面二维水流数学模型计算了湖北省白谭湖分蓄洪区洪水演进的情况。
The flood routing in the flood diversion area of Baitan Lake, in Hubei Province, is calculated by the developed plane 2-d water mathematical model for flood diversion area.
运用改进的分蓄洪区平面二维水流数学模型计算了湖北省白谭湖分蓄洪区洪水演进的情况。
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