第3章以概化的矩形河道为对象,采用一维涌潮数学模型对潮波进行模拟,对涌潮的成因作了分析研究。
Chapter 3 has analyzed the origin cause of tidal bore through simulating bore with one-dimensional bore model based on the ideal rectangle cross watercourse.
羊水、饮水、河水、湖水、海水,在遥远遥远的地方,是否存在着永无尽头的波涌呢?
Amniotic fluid, drinking water, river, lake, sea, where in the far distance place, is there boundless surge?
分析了溃坝波和涌潮等波动的基本特征。
The basic characteristics of bore and dam break wave are analyzed.
波涌灌溉土壤间歇入渗数学模型是进行波涌灌溉田面水流运动数值模拟和灌水方案优化设计的基础。
Infiltration model for surge irrigation is the base of surface water flow movement simulation and irrigation scheme design of surge irrigation.
运用正交试验设计方法在田间进行灌水试验,结果表明:波涌阀前调节阀入口压力是影响波涌阀阀片转换的主导因素;
The main factor was the entrance pressure of the regulating valve before surge valve to influence the conversion of valve slice of surge valve.
在这种鱼道中出现的滚动流将产生波涌,并继续向下传播,而且它的周期性滚动可能会严重危害鱼道。
Tumbling flow is appeared in this fishway which produces wave surge and continues to flow downward and may causes serious damage due to its behaviour of periodic tumbling action.
波涌沟灌条件下土壤水分入渗研究是实现精量灌溉的理论基础。
The study on soil water infiltration under surge irrigation is the thesis base of applying accurate irrigation.
那么,嘘,什么都别说,轻轻地走进海水中,让海亲吻我们的肌肤,裹住我们的脚踝,一波又一波的涌过来吧。
Well, boo, let alone anything and gently into the sea water, causing the sea kissed our skin, wrapped around our ankles, wave after wave of Bay over bar.
在内蒙古河套灌区采用波涌灌溉,施用PAM(土壤结构稳定剂)和利用地下咸水灌溉等不同处理进行了玉米地水蚀作用的试验研究。
Experimental study of effects of surge irrigation, PAM, and irrigation with saline ground water on soil water erosion was carried out in Hetao irrigation District, Inner Mongolia.
根据大量试验研究成果,提出了波涌畦灌灌水技术要素设计的理论方法和经验方法。
Based on a great amount of experimental research, the theoretical and empirical design methods of surge flow border irrigation technical parameters are presented.
这些研究成果为进一步研究波涌灌技术奠定了基础。
These research results have laid a foundation for rather study of muddy water surge flow irrigation technology.
基于田间实测的地表水流推进过程,利用水量平衡法推求波涌灌溉间歇供水条件下的土壤入渗参数。
Based on water flow advance data observed in fields, infiltration parameters under surge water application were determined with water balance method.
冬季季风比夏季季风强盛,相应的平均波高、大浪大涌频率也较大。
The monsoon in winter is stronger than that in summer, and correspondingly, the average wave high is higher, and the frequencies of rough sea and heavy swell are also stronger.
左上图为波涌灌溉田间应用实践,右下图为中国水科院研制的波涌控制阀。
Upper Left is the Practice of Surge Irrigation. Below is the Surge Valve Made by IWHR.
结果表明,当灌水量相同时,灌水结束后波涌灌和连续灌0~100cm土层含水率在整个畦田上存在较大差别。
The results showed that, when precipitation rate was the same, the moisture content in 0~100cm soil layer presented difference between surge flow irrigation and continuous irrigation.
结果表明,当灌水量相同时,灌水结束后波涌灌和连续灌0~100cm土层含水率在整个畦田上存在较大差别。
The results showed that, when precipitation rate was the same, the moisture content in 0~100cm soil layer presented difference between surge flow irrigation and continuous irrigation.
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