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- This paper studied the theory of wetted perimeter method in different transection shapes, analyzed the P-Q relation of different transection shapes. 摘要研究了不同河道几何断面的湿周法理论,分析了各种几何断面的湿周-流量关系。
- Some empirical relations between the rill width or wet perimeter and discharge and slope are presented through the data analysis.The relation about wet pe... 通过分析试验数据,得到了细沟宽度及过水断面湿周与流量和坡度的经验关系,并发现湿周与它们的关系更为密切。
- The conception of wetted perimeter in the design of pump was introduced, the quality of the meridional contour was assessed by calculating the wetted perimeter area change with center stream-line. 引入了水泵中广泛采用的过水断面的概念,通过过流断面随流道中心流线的变化曲线判断子午型线的优劣,并实时修改以获取新的子午型线。
- With the purpose of minimizing wet perimeter, limited by the average flow, this paper deduces the nonliner programming models of the cross-section of lined canal by method of lagrangian multipliers. 以湿周最小为目标函数,均匀流公式为约束条件,应用拉格朗日乘子法求解,推导配水衬砌渠道横断面的非线性规划模型。
- wetted perimeter of flow cross section 湿周
- improved wetted perimeter method 改进湿周法
- The fur collar mats when it gets wet. 皮领子湿了时毛就结在一起。
- Guards patrolled the perimeter of the airfield. 卫兵沿机场四周巡逻。
- Keywords the wetted perimeter;the minimum instream flow;transection shape;instream flow estimate; 湿周法;最小生态需水量;断面形状;水量估算;
- Keywords high and cold area;water demand of ecological environment;flowing period;freezing period;Tanate method;river wetted perimeter method; 高寒地区;生态环境需水;畅流期;封冻期;田纳特方法;河道湿周法;
- He loses his footing on the wet floor and fall. 他在潮湿的地板上失去平衡而摔倒了。
- The grass was wet with dewdrops. 草被露水浸湿了。
- The perimeter of the airfield is protected by guard-dogs. 机场外的环形防卫圈由警犬保卫着。
- The wet clothes will soon dry in the sun. 湿衣服在太阳下很快就会干的。
- The barbed wire fence round the perimeter discouraged intruders. 周围有铁丝网阻止了外人闯入。
- Wring the water out of your wet bathing costume. 把你的游泳衣里的水拧出去。
- Don't keep your socks on if they get wet. 要是袜子湿了,就不要再穿了。
- It must have been raining. The pavement is all wet. 刚才准是下雨了。人行道都湿了。
- It must have rained last night for the road is wet. 路面是湿的,昨晚肯定下过雨。
- As the day was wet we stopped in and played bridge. 由于下雨,我们没出去,在家打桥牌。