Based on survey of the literatre concerned,the F harm on plants,soil microbes and human health,geographic distribution of the areas with high F water and the statas of F epidemic areas are introduced. And the methods ...Based on survey of the literatre concerned,the F harm on plants,soil microbes and human health,geographic distribution of the areas with high F water and the statas of F epidemic areas are introduced. And the methods of controlling F harm and testing F in soil are also presented.展开更多
针对某大(1)型水电站泄洪时表孔闸前出现立轴漩涡现象,利用VOF(volume of fluid)方法对进口漩涡等水力特性进行了数值模拟计算,据此分析了坝前漩涡出现的原因、变化趋势等,初步探讨了漩涡对坝体泄洪结构的影响,提出了减弱表孔门槽及闸...针对某大(1)型水电站泄洪时表孔闸前出现立轴漩涡现象,利用VOF(volume of fluid)方法对进口漩涡等水力特性进行了数值模拟计算,据此分析了坝前漩涡出现的原因、变化趋势等,初步探讨了漩涡对坝体泄洪结构的影响,提出了减弱表孔门槽及闸首部位出现有害漩涡的调度方案。展开更多
文摘Based on survey of the literatre concerned,the F harm on plants,soil microbes and human health,geographic distribution of the areas with high F water and the statas of F epidemic areas are introduced. And the methods of controlling F harm and testing F in soil are also presented.
