查询词典 river channel

In Taiwan area often have typhoon attracting during summer times. Typhoon brings abundant rainfall and the rainfall concentrates to the river, naturally washes out the main channel and the river high alluvion. When flood retreat, the exposed high alluvion can be widely used. Agriculture, plant and wetland, these places can increase zoology. On the other hand ,they baffle current of water flow. So this research focuses on different arrangement of flexible vegetation.

中文摘要因为台湾地区因气候关系常有台风侵袭，台风来临时带来的充沛雨量集中到河川，自然冲刷出主河道和高滩地，当洪水退去时，裸露的高滩地即可以广泛地被利用，有许多的人为开垦、种植，但是这些植生有增加动植物栖地的益处，另一方面也会产生阻碍水流的害处，所以本篇对於不同布置方式的柔性植生做流场的研究。

In connection with the estuary regulation of Yellow River, the effects from the channel-change of Qingshuigou Course and the branch-change of Qingba Anabranch for Yellow River on the extension of sedimentation are analyzed based on the prototype data and the model test result concerned, in which the effects from the dredging at the estuary on the water level of the tail course and the change from the river bed desiltation ate discussed.

黄河口治理具有长期性和复杂性，探求不同治理措施条件下尾闾河段冲淤规律是十分必要的。根据原型资料和模型试验结果，分析了清水沟改道和清8改汊对河口淤积延伸的影响，探讨了河口段挖河疏浚对尾闾河段水位、河床冲淤变化的影响。

Research results show that the warden 4 + 5 to 6, meandering river delta depositional belongs to the reservoirs mainly development phase, the delta plain and sedimentary microfacies in distributary channel, and channel between.

研究结果表明该区长4+5为曲流河沉积，长6油层组沉积属于三角洲相，主要发育三角洲平原亚相，沉积微相以分流河道和河道间为主。

Based on the Saint-venant equations describing the channel flow movement, the nonlinear algebraic equations derived by the use of Preissmann weighted implicit four-point scheme are solved with the Netwon-Raphson method. A combined Gauss main-element elimination method with compress-storage technique is proposed. The relaxation iterative method for solving branch river networks is extended, which can turn the problem of any complex river networks into the problem of a series of single rivers. The coupling of hydraulic model with water quality model is built up. The combined model was applied to a large complicated river networks with numerical hydraulic structure which influenced by strong tide, storm and heave rain. Visualization of computational results is realized by means of MapInfo, which displays the computational results in fast, convenient and accurate way.

水力模型以描述河道洪水波运动的Saint-Venant方程组为基础，用Newton-Raphson方法直接求解按Preissmann加权四点格式进行离散所得的非线性代数方程组，提出了压缩存贮形式的Gauss列主元消去法并对数值解的收敛性进行了讨论；将支流流量的松弛迭代方法从树状河系推广到了环状河网，使任意复杂河网水力计算的问题都可化为一系列的单一河道的水力计算问题；建立了水力模型与水质模型的联接，初步应用于既有洪水、暴雨、强潮等综合影响，又存在多种水工建筑物及水力调度问题的大型复杂河网中的非恒定流水力、水质计算问题；利用MapInfo对计算结果的可视化进行了研究，有利于决策者快速、方便、准确地作出决策。

The deltas differ from typical deltaic model.Deltaic front subaqueous distributary channel sand bodies and deltaic plain distributary channel sand bodies are the skeleton sand bodies of meandering stream-shallow sea delta and braided streain-shallow lake delta respectively but not tranditional deltaic front river mouth sand bars.

这两类三角洲与经典的三角洲模式不同的是，三角洲前缘水下分流河道砂体和三角洲平原分流河道砂体分别构成了曲流河浅水海相三角洲和网状河浅水湖泊三角洲的骨架砂体，而不是传统认为的三角洲前缘河口砂坝。

Independence of the county's major rivers into the sea there is the Green River Anadromous, Qinglong River, Shuanglong River, so common are scouring the landscape and into the sea channel slot.

本县海岸带的潮间带十分广阔，有以河流作用为主的地貌类型和以海水作用为主的地貌类型，还有以河流和海洋共同作用的地貌类型。

It is impossible for all bankfull floods to have the function of silting floodplain and scouring the channel. It deems through study that the main channel of the Yellow River will be obviously scoured only when flood discharge reaches to 1.5 times of bankfull discharge.

并非所有的漫滩洪水都具有淤滩刷槽作用，研究认为，对中低含沙洪水，只要当洪水流量达平滩流量的1.5倍以上，黄河主槽才出现明显冲刷。

River diversion is a familiar form of alluvial river, which is often caused by ait and chur. At the same time, emissary and headwater channel also is a familiar form of river diversion.

河道分流是冲积河道中一种常见的形式，江心洲、江心滩可以引起河道分流，而分水道、引水渠也是一种常见的河道分流形式。

The reservoir quality of bank of river facies, distributary channel of shallow delta, distal bar and distal channel of delta front, sand sheet, overbank of terminal fan take second place.

河流相堤岸亚相、浅水三角洲分流河道、三角洲前缘远河道与远砂坝、前缘席状砂、末端扇河道漫溢相储层物性次之。

By studying reservoir rock characteristics, diagenesis and physical property, investigation showed that there were distributary channel, branch channel, mouth bar, distal bar, sand sheet, lakeshore, shallow lake and limestone flat . we concluded that the reservoir of N1～N21 is low porosity and permeability reservoir with the types of primary porosity and secondary intergranular porosity, which is in the early diagenetic stage B into the late diagenetic stage A subperiod. The role of effecting reservoir physical property is deposition, cementation, dissolution and tectonic rupture. After researching of reservoir, we divided it into three categories and division the favorable facies belt and relatively favorable. We think that the favorable facies belt is braided river delta front and partly shallow lake in east of the Fault Ⅶ. favorable reservoir is in the first and the second class.

进一步研究了本区碎屑岩储层的岩石学特征、成岩作用特征、物性特征，研究认为该区储集体类型有分流河道砂体、分支河道砂体、河口坝、远砂坝、席状砂砂体、滨湖砂滩、浅湖砂坝砂体及灰坪；N1层属于低孔、特低渗储层，孔隙类型以原生、次生粒间溶孔为主；分析了影响储层物性的因素主要为沉积作用、胶结作用、溶蚀作用和构造破裂作用；进行了储层评价与有利相带预测，将储层分为三类并划分了有利区带、较有利区带，认为Ⅶ号断层以东的辫状河三角洲前缘亚相和部分浅湖亚相是N1的有利储集相带，储层以Ⅰ、Ⅱ类为主。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。