英汉例句

• the maning roughness coefficient and the drag coefficient of a simple type of the artifical roughness bed are measured.

  测定了一种简单加糙体型的等效曼宁糙率系数和等效阻力系数；

• it is also found that, when the water depth is fixed, the manning roughness coefficient increases as the longitudinal pier spacing increases up to approximately the pier width.

  值得一提的是，当水深维持不变时，曼宁粗糙系数也会持续增加直至纵向基桩间距与其宽度相同为止。

• that is, the roughness coefficient decreased with the increase of reynolds on steep slope.

  在坡度较大时，阻力系数随雷诺数的增大而增大。

• the roughness coefficient as an important parameter is very critical and useful to the hydraulic engineering whenever on the stage of design, construction, operation and management of the project.

  糙率系数作为水力计算中一个至关重要的参数，对其变化规律及取值范围的研究是进行各种水利工程设计、施工、运行和管理过程中的重要工作。

• we also find the obvious effectiveness of gabion revetment. analyzing actual measurement data, find out the roughness coefficient of gabion revetment, to provide suggestion for revetment design.

  试验发现格宾护岸对减小波浪爬高具有明显的作用，通过实测和统计分析得出了格宾材料的糙渗系数，为护岸设计提供参考。

• the roughness coefficient increases when the relative roughness of the surface becomes larger under the same condition of discharge.

  对于不同粗糙程度的壁面，在同一流量条件下的糙率系数会随着相对粗糙度的增大而增大。

• the experiment results show that the threshold velocity is affected by the ratio of roughness coefficient of ice cover and bed.

  试验表明：冰盖下泥沙起动流速与冰盖及槽底糙率的相对比值有关。

• a simpler fractal model to estimate the joint roughness coefficient (jrc) is suggested. it can be applied to simulate rock discontinuity profiles.

  提出了一种更为简单的估算巖石断裂面粗糙度（jrc）值的分形模型，可用来模拟巖石断裂面剖面线。

• river roughness coefficient with a predetermined value;

  提供河岸粗糙系数的预定值；

• with combining optimization method, an optimal model of determining synthetic surface roughness coefficient in film hole irrigation was developed.

  实例计算与方法验证表明，该方法能够简单而有效地确定膜孔灌溉田面综合糙率系数。

• a laboratory experiment has been conducted in a water flume to measure the roughness coefficient of the non-submerged reed that is the main vegetation on song nen river basin.

  对松嫩流域湿地主要植物芦苇在非淹没流条件下的阻力特性进行了水槽模型试验；

• when f is larger than 12.2371, the vegetation roughness coefficient and drag coefficient decrease as f increases.

  若植被抗弯指数f值大于12.2371，植被糙率系数和阻力系数随f值的增大而减小。

• the results show that the manning roughness coefficient increases with increasing water depth.

  试验结果表明，曼宁粗糙系数随水深深度的增加而增加。