| 1. | Self-formed river channels tend to be sinuous .
自动形成的河槽是趋向于弯曲的。 |
| 2. | Thus, alluvial channel flows are simultaneously sculptor and sculpture .
这样，冲积河槽水流既是塑造者，同时又是被塑造者。 |
| 3. | Those within existing stream channels are much less stable than overbank deposits .
现在河槽内沉积物的稳定性比河漫滩上沉积物差的多。 |
| 4. | The deposition of sediment in channels decreases the channel capacity and the flood-carrying capacity .
泥沙淤积在河道内，减少了河槽容量和泄洪能力。 |
| 5. | Aggrading streams heavily charged with bed load may fill their channels nearly to the top of the banks .
带有大量推移质的堆积河流可以把河槽淤高到几乎与岸顶齐平。 |
| 6. | The characteristic of bed regulating is that the width and area of main channel and medium flowing channel increased greatly during the sustained silting period and decreased during scouring period
河道调整特点为持续冲刷时期主槽、中水河槽的河宽、面积都明显增大，持续淤积时期则减小。 |
| 7. | In the early periods , the objective of the river management is to constraint the braid river in a main channel by using construction of dikes . by control the flood could prevent from river banks flowing away
早期河川治理，以筑堤御洪为主，其主要目标在于整理网状乱流，束范于河槽中，防止沿岸土地浸淹崩坍及流失，达到防灾减灾的目的。 |
| 8. | The main measures are : damming improving flow condition riverbed excavation etc . riverbed excavation is always used in reducing velocity of a channel with bad flow condition . in singularity channel , velocity can be reduced with the increase of crossing area by excavating riverbeds
整治采取的主要措施有：筑坝壅水、改善流态、开挖河槽等等，对于流态恶劣的急流滩，常采用开挖河槽扩大过水断面面积的方法来降低航道流速。 |
| 9. | The problems from sediment discharge for de - siltation and the relative stability of fiver channel can be solved through the study on the main indexes such as flow rate , silt concentration and etc . based on the analysis of sediment - carrying capacity of flow and the law of river channel evolution
在分析水流挟沙力和河槽水力形态规律的基础上，研究调水调沙的流量、含沙量等主要水沙指标，可以解决河道输沙减淤和河槽相对稳定问题。 |
| 10. | A 2 - d hydrodynamic - numerical model was applied to typical rocky rapids called jiyutan by comparing different computational models . based on the comparison of different schemes , the change of the discharge and the flow current in a branch were analyzed , and the relationship between the flow condition and excavation area , scope as well as mode was discussed , the conclusions show : ( 1 ) in a branching rocky rapids , the velocity may be reduced and flow condition can be improved by excavating one channel partly
本文在对各种数学模型比较的基础上，应用二维水动力数学模型研究典型石质汊流滩? ?广西浔江鲫鱼滩航道整治工程方案，通过各方案计算结果比较，分析了不同汊道的开挖及汊道内不同开挖面积、开挖范围以及开挖方式所引起的分流比及工程区域航道水力条件的变化规律，研究结果表明： ( 1 )对于石质汊流滩来说，在某一汊道通过局部开挖河槽，扩大过水断面面积，可以达到降低工程段流速、改善局部水流条件的目的。 |
