河口区域 meaning in English

estuary region

The analyses of the calculated current fields , wave fields and suspended sediment distributions under normal or typhoon weather show that the model system can preferably reflect hydrodynamic fields and sediment distributions in the yangtze estuary
分析流场、波浪场以及正常和台风天气下的悬沙场的计算结果，表明该模型系统能合理地反映长江河口区域的水动力场和泥沙场的分布。
In practical projects , the boundary shape irregularity of the lake , reservoir , river and estuary area and the non - linear character of hydrodynamic equation make it difficult to get the theoretical solution of the equation , so the numerical solution has to be the only a choice
由于实际工程中湖泊、水库、河流、河口区域边界几何形状的不规则，以及水动力学方程的非线性性质，使得理论分析解难以作出，只能求助于数值解。