streambed

1. A streambed filled with water only in the rainy season.
   只在雨季有水的河床。
2. A ridge, as of sand or gravel, on a shore or streambed, that is formed by the action of tides or currents. Study on the Basic Laws of Flow and Sediment Transport in Alluvial Channels
   沙洲，沙滩在海边，河床等处由沙子或小石子形成的隆起，由潮水或水流运动而形成冲积河流水流泥沙运动基本规律的研究
3. Experimental Study on Streambed Structures and Bed Load Transport in an Incised Stream Discriminative condition of simplification and classification for applying advection-dispersion model for calculating water quality
   河床结构对推移质运动及下切河流影响的试验研究河流移流离散水质模型的简化和分类判别条件分析
4. A valley, gully, or streambed in northern Africa and southwest Asia that remains dry except during the rainy season.
   旱谷（干河床）北非或西南非的山谷、峡谷或河床，除雨季外一直保持干涸。
5. An innovative design in which intercepting main sewers are laid under streambed of a river in an old city is presented with a set of technical measures.
   针对老城区内河岸上敷设污水截流干管存在困难的特点，提出河床下敷设截流干管的设计方案及相应的技术措施。
6. Field experimental study on development of mountain streambed structures
   山区河流床面结构发育野外现场试验研究
7. Measurement in situ of streambed hydraulic conductivities in the Platte River, Nebraska
   美国内布拉斯加州普拉特河河床沉积物渗透系数的现场测定
8. Artificial step-pool system can be used for training of mountain streams, which may stabilize the streambed and bank slope, restore healthy river ecology and high biodiversity, and better aesthetic landscape as well.
   利用阶梯&深潭系统治理山区河流，既能保持河道稳定，又能维持较高的生物多样性，保持健康的河流生态系统。
9. Using the method of principal component analysis, the multivariate linear Kv model based upon the main physicochemical properties of streambed sediments was preliminarily established.
   通过主成分分析方法，初步建立了基于河床沉积物的主要理化特性的Kv多元一次计算模型。
10. Therefore, the quantitative research on the hydraulic conductivity of streambed sediments and their spatial variability are of great significance in determining the magnitude and scope of the exchange between river water and groundwater and the movement of pollutants and in restoring the river ecosystem.
    因此，定量研究河流沉积物渗透系数及其空间变异性，对于确定河水-地下水水量交换和污染物运移的量值与范围，修复河流生态系统健康具有重要作用。

noun

1. a channel occupied (or formerly occupied) by a stream

   Synonym:    creek bed