| 1. | In many low head hydraulic structure , expecially canal system structure , we are used a dopting underflow energy dissipation
在众多的低水头水工建筑物中，特别是渠系建筑物中的涵闸下游，多采用底流消能。 |
| 2. | The t type barrier stilling basin has developed to a new energy dissipation technology which is adapted for energy dissipation of underflow in recent years
T形墩消力池是近年来发展起来的新型消能技术，适用于底流消能形式。 |
| 3. | Arch net floor has opened up a new way for the small - sized works , expecially for the canal system structures of low frouda number underflow energy dissipation
拱网为小型工程特别是渠系建筑物低佛氏数底流消能开辟了一条新途径。 |
| 4. | The entrance concentration has no effect on the efficiency of hydrocyclone , but the underflow concentration escalates along with the augment of entrance concentration
入口浓度不影响旋流器的分离效率，但底流浓度随入口浓度的增大而增大。 |
| 5. | 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。 |
| 6. | Then fine out when apron is fixed objects to make it rough , the speed of bottom of water in the limited district next section having the objects becomes lower , and the depth of scour cuts down 50 % to 70 %
研究发现：海漫加糙后，加糙段及其后一定范围内出现底流底速区，使下游冲刷减小50 %到70 % 。 |
| 7. | In this essay a kind of auxiliary energy dissipator arplying to underflow energy dissipation of low froude number is developed . it mainly applies to the small - sized projects , especially to the canal system structures
本文研究了一种适用于低佛氏数底流消能的辅助消能工? ?拱形网板(简称拱网) ，它特别适合于小型工程尤其是渠系建筑物。 |
| 8. | Hydrocyclone is used to p urify bentonite according to the structure characteristicof hydrocyclone , the effects of apex diameter , flow quantities , liquid - solid ratio anddispersant on the recovery r atio and purity of bentonite have been studied , the optimumparameters of t echnology are put forward
根据水力旋流器的结构特点，应用水力旋流器进行湿法提纯的工艺流程，研究了底流孔径、流量、液固比和分散剂对膨润土含量和回收率的影响，提出了优化的工艺参数。 |
| 9. | Based on the analysis of characteristics of sediment particle concentration distribution , it is pointed out that the diffusion theory can describe sediment concentration distribution in main flow region but cannot explain sediment concentration distribution law near bottom because of the existence of sediment colliding shear stress
摘要在分析泥沙颗粒含量分布特性的基础上，指出扩散理论能较好地描述主流区的泥沙含量分布规律，但在近底流区由于泥沙碰撞切应力的存在，使得扩散理论不能解释此区域的泥沙含量分布规律。 |
