| 1. | They do, however, grade into sorted and stratified sediments where higher water content has produced conditions transitional to turbid stream flow .
然而，在泥沙含量较大逐渐形成浑蚀流的地方它们也可变为分选和有层理的沉积物。 |
| 2. | A method of measuring sand content in river water
河水泥沙含量测量方法研究 |
| 3. | Yellow river which is the second big river of china is famous to the world because of high content of bedload
黄河，是我国第二大河流，以泥沙含量高而闻名世界。 |
| 4. | Compared with measured data , this equation can describe the sediment concentration distribution better both in main flow region and near - bottom region
与实测资料对比表明，该公式能更好地描述包含主流区与近底流区在内的泥沙含量分布规律。 |
| 5. | Hydrologists can benefit from this system . their work efficiency and hydrological instrument automation level are advanced greatly
此系统可帮助水文工作者更快、更准的获取泥沙含量及流速数据，大大提高水文工作者的工作效率和水文测验仪器的自动化水平。 |
| 6. | Finally the constitution , function , principle and application range of an automatic system for monitoring sediment with r ray and velocity of river flow is described in detail
本论文最后详细阐述了射线河流泥沙含量和流速自动化监测系统的组成、功能、工作原理以及应用范围。 |
| 7. | Presently , the means of drying and weighing the sediment liquor are usually used to measure the sediment concentration in many countries . but this method is not only taking time but also strenuosity
目前世界各国大多仍采用悬沙采样器取水样的方法通过“烘干称重法”来检测泥沙含量。 |
| 8. | By introducing the diffusion caused by sediment colliding , the diffusion theory is revised , and the equation for sediment concentration distribution is derived from theory analysis
进而在引入颗粒碰撞扩散的基础上，对泥沙颗粒扩散理论进行修正，从而在理论上得到了挟沙水流泥沙含量分布规律的公式。 |
| 9. | Its influence on measurement precision of sediment concentration is also analyzed and the result indicates that a specific estimation error will bring about equal error
同时从理论上分析了质量吸收系数变化对泥沙含量测量精度的影响，结果表明质量吸收系数的一定估计误差将引起泥沙含量测量结果的等量误差。 |
| 10. | The formula for computing sediment concentration is determined with mathematical method theoretically according to the attenuation law of y ray and characteristics of mixture of solid and liquid
本论文首先根据射线穿透物体过程中的衰减规律以及水沙液固两相流的特性，用数学的方法从理论上推求了射线透射法计算泥沙含量的理论计算公式。 |
