sediment processes 泥沙过程(5)   泥沙过程     Coastal saltmarsh sediment processes:a field experimental study     海岸盐沼泥沙过程现场实验研究 短句来源     Mechanism Analysis of Watershed Sediment Processes     流域泥沙过程机理分析 短句来源     Three calculation methods of the benefits of water and soil conservation are introduced in this paper. Comparisons of the three methods and application of measured data indicate that the model method is a reasonable and feasible calculation method. The model can be used to simulate the long series flow and sediment processes in large and medium river basins,and has a good transplantability.     介绍了三种水土保持减水减沙效益计算方法．通过分析比较和实际应用，认为模型法是合理可行的计算方法．所建模型能够模拟大中流域长系列水流泥沙过程，且有较好的移植性．本文方法应用于大理河流域水土保持减水减沙效益计算，效果良好． 短句来源   “sediment processes”译为未确定词的双语例句     The model can be used to simulate the runoff and sediment processes in time and space.     本模型成因性强,结构与参数物理概念清楚,其最大特点是能够模拟水流泥沙的时空变化过程. 短句来源     In this paper, a mathematical model is developed to solve the problem of one dimensional tide and sediment processes computation.     本文采用天然冲积河道中缓变非恒定一维水流泥沙方程组建立了研究徒骇河感潮河段泥沙冲淤变化的数学模型。 短句来源     Differences of hydrodynamic and suspended sediment processes at two ends of the North Passage are also confirmed by the mathematical modeling results.     长江口北槽口内和口外水动力悬沙过程的差异性在一维数学模拟的结果中也得到了证实。 短句来源     Different positions in gully area have different phenomena of erosion and sediment yield,and even represent disparate patterns of water and sediment processes in different watershed scales.     沟壑区的不同部位具有不同的侵蚀产沙现象,并在不同的空间尺度上表现出迥异的水沙运动规律. 为此需将流域分为坡面与沟道两大系统分别研究. 短句来源     Studying the mechanism of water and sediment processes is the basis of establishing the water and sediment model system which accords with the actual physical pattern and finishes the simulation of the whole water and sediment process.     考虑影响水沙运动的多种要素,建立沟道系统的高含沙水沙模型. 短句来源 查询“sediment processes”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   sediment processes The relative importance of watercolumn and sediment processes will depend on the physical and chemical structure of a given lake. 例句来源       The minor role of bioturbation in sediment processes is discussed. 例句来源       The minor role of bioturbation in sediment processes is discussed. 例句来源       The amount of acidity neutralized by sediment processes is 2 orders of magnitude greater than previously reported observations. 例句来源       The amount of acidity neutralized by sediment processes is 2 orders of magnitude greater than previously reported observations. 例句来源       更多                    In this paper, a conceptual flow-sediment coupled simulation model for median or large scale basin was applied to simulate the flow and sediment of Jingchuan basin and Hekou-Longmen basin under the circumstances of unnatural, to discuss the effects of climatic and man's activity factors on the processes of basin flow-sediment, to analyse the impacts of water conservancy projects and water-soil conservation measures on rules of basin flow and sediment, and to estimate the variat...             本研究用中大流域水沙耦合模拟物理概念模型对泾河流域景村水文站以上和黄河干流河口～龙门区间两流域非天然条件下观测的水、沙实测资料作了模拟；讨论了气候、人类活动因素对流域水沙规律的影响机制，分析了水利工程措施和水土保持措施对流域水沙规律的影响，估计了流域水沙规律的变迁导致的模型参数值的改变．进一步证明了模型结构的合理性和模型对非天然条件下水沙规律模拟的可行性及有效性． 文摘来源          The watershed under study is divided into several element watersheds according to natural drainage systems in this paper. Each subwatershed is further divided into three parts based on the vertical distribution of the soil erosion and the topography-geomorphy. All subwatersheds are schematized as a "open book" which is composed of sloping lands with different slopes and one channel. The kinematic wave theory and the finite-difference method are used to simulate the overland flow and the river flow. The calc...             按自然水系划分单元,每一单元又被概化为“一本打开的书”,概化后的单元又区分为几个微地貌区.各单元水沙过程演算至流域出口迭加得流域产流产沙过程.此法一方面解决了降雨、侵蚀和下垫面的不均匀性,另一方面又解决了水沙的演算问题.坡面和沟道水流用运动波方程描述并用四点隐式差分格式求其数值解.根据水流作功和能量平衡原理推导出各微地貌区上的土壤侵蚀量计算公式,建立起具有物理过程基础的小流域产流产沙模型.参数用黄土区小流域实测水沙资料率定,模型在该地区若干流域上应用,取得满意的结果.本模型成因性强,结构与参数物理概念清楚,其最大特点是能够模拟水流泥沙的时空变化过程. 文摘来源          Three calculation methods of the benefits of water and soil conservation are introduced in this paper.Comparisons of the three methods and application of measured data indicate that the model method is a reasonable and feasible calculation method.The model can be used to simulate the long series flow and sediment processes in large and medium river basins,and has a good transplantability.The method has been applied to calculate the benefits of water and sediment reduction in Da Lihe basin...             介绍了三种水土保持减水减沙效益计算方法．通过分析比较和实际应用，认为模型法是合理可行的计算方法．所建模型能够模拟大中流域长系列水流泥沙过程，且有较好的移植性．本文方法应用于大理河流域水土保持减水减沙效益计算，效果良好． 文摘来源   << 更多相关文摘         相关查询: sediment dynamic processes sediment transport processes watershed sediment processes processes ( processes sediment sediment yield model based on physical processes sediment handling sediment contamination sediment classification chain processes metasomatic processes  对查询结果不满意

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