| 1. | This means that the fall velocity of sand particles in such suspensions will be less than in clear water .
这意味着这种悬浮物中的沙粒的沉速将比其在清水中为小。 |
| 2. | Fall velocities are usually measured by observing individual grains settling in a column of still fluid .
沉速通常是由观测单个颗粒在圆柱筒内静止的液体中沉降来测定的。 |
| 3. | Frequency distributions of properties, e.g. size and settling velocity are necessary to the description of sediments .
粒径和沉速的频率分布特性对于描述泥沙都是必需的。 |
| 4. | The suspended sediment of natural streams is usually made up of grains with a broad spectrum of sizes and fall velocities .
天然河流的悬沙，通常系由各种大小尺寸和沉速的粒子组成。 |
| 5. | Study on the fine sediment settling velocity formula with the parameter of ca2 concentration
含离子浓度参数的粘性泥沙沉速公式研究 |
| 6. | Experimental study on effect of positively charged ion in river on the velocity of sediment particles
阳离子浓度对泥沙沉速影响实验研究 |
| 7. | The value of bp is dispersed . the particle velocity in streamwise direction as the particle rise is larger
轻质颗粒向下的运动速度明显大于其在静水’上的沉速，出重颗粒则相反。 |
| 8. | The distribution of concentration still obeys the diffusion law , only the efftects of the group particle fall velocity and the dispersive force on the diffusion index z1 shall be considered
悬沙浓度分布仍遵循扩散定律，但扩散指教z1将受到颗粒群体沉速和离散力的影响， -般为y的函数。 |
| 9. | Thirdly , several problems are discussed , such as the calculation of the silting velocity of sediment , the sediment transport capacity , the coefficient of sediment resume saturation , etc . on the basis of these discussions , the mathematical model is improved
其次对泥沙沉速计算、水流挟沙力和恢复饱和系数的取值等问题进行了探讨，在此基础上对现有的泥沙数模学型进行了改进和完善。 |
| 10. | The studies on flocculation parameters of high turbidity water are completed more integrally , including establishing the equation about the relationship between the covering ratio of flocculent on silt surface 6 and the surface area of silt particles s . the re - concentration law of thickener underflow is studies
建立了一定沉速下，泥沙固体颗粒表面覆盖率与泥沙颗粒表面积s间的函数关系式；较系统地完成了高浊度水絮凝参数的研究。研究了高浊度水沉淀池排泥的再浓缩规律。 |
