天然河道 meaning in Chinese
natural channel
Examples
- The deposition of sediment in our natural stream channels has greatly aggravated floodwater damages .
泥沙淤积在天然河道，已大大加剧了洪水的危害。 - This database include 9112 sets of experimental data and 6013 sets of natural river data . compared with existing sediment transport database , the database of this paper have more data sets than others
该数据库包含9112组实验室水槽资料和6013组天然河道资料，与前人所编的泥沙运动数据库相比，资料的数目大大增加。 - For the identified sensitive streams , buffer zones on both sides of the streams and no direct contact with natural streams are proposed in order to preserve the integrity of the streams during and after the construction of the bridges
在已确定的有关溪流两旁设置缓冲地带和禁止侵扰其天然河道以保护溪流的完整性。为了保护这些溪流， - Through the study above , a refined description and modeling to flow field and water surface near the groyne in river is conducted with 2 - d and 3 - d mathematical models . the results by simulation are consistent well with experiment data
通过上述研究，作者采用二维和三维数学模型对水槽试验和天然河道中丁坝附近流场和水面形态进行了精细地描述和模拟，计算结果和实测结果吻合良好。 - On the basis of the field data of water temperature , a new formula for estimating water temperature of river by using meteorological factors is put forward by using the method of least squares
摘要结合某流域水温原型观测资料，通过分析水温与气温、太阳辐射、湿度和风速之间的相关关系，采用最小二乘法建立了水温与气温、湿度和风速三者之间的多变量函数方程式，提出了一种利用气象因子估算天然河道水温的新公式。