pond sediment  池塘底泥

Sediment deposit pond  沉砂池

Sediment of aquiculture pond  鱼塘底泥

deposit coarse sediment and release fine sediment  淤粗排细

retaining course sediment and discharging fine sediment by channel storage  拦粗排细

1∶50 000 stream sediment  1∶5万水系沉积物

1-D mathematical model for flow and sediment  一维水沙数学模型

2 D depth averaged flow and sediment model  平面二维水沙数学模型

2-D flow and sediment mathematical model  二维水沙数值模拟

2-D horizontal flow and sediment model  平面二维水沙数学模型

2-D mathematical model of tidal wave and sediment  二维潮波泥沙数学模型

2D non-equilibrium sediment transport equation  二维不平衡输沙方程

2-D numerical water-sediment model  二维水沙数学模型

2-D suspended sediment model  平面二维悬沙数学模型

3-D flow and sediment transport model  三维水沙数学模型

3-D water and sediment model  三维水沙模型

50000 Stream Sediment Survey  5万水系沉积物测量

abundant and coarse sediment area  多沙粗沙区

abundant and coarse sediment area of north Shaanxi  陕北多沙粗沙区

abyssal sediment  深海沉积物; 深海沈积物; 深海沈积; 深海沉积