1) branch
[英][brɑ:ntʃ] [美][bræntʃ]
分汊
1.
Considering the helical flow in the case of flood diversion of branched channel, this paper presents a model to calculate the diversion ratio of suspended load in different size groups in terms of the diversion ratio of water and the terrain condition nearby the branch, the total suspended load concentration, and the grain size distribution, etc.
本文在考虑了分汊河道分流时横向环流作用的基础上，求出了汊道悬移质分组泥沙分沙比与分流比、分汊口附近地形的关系，以及全沙含沙量和级配等。
2) inlet dividing
通道分汊
3) junctions group method
汊点分组
1.
A junctions group method for unsteady flow in multiply connected networks;
河网非恒定流隐式方程组的汊点分组解法
2.
The shortcomings of the junctions group method are analyzed;and the Cuthill-Mckee method for numerical simulation in river networks is applied on the basis of the junctions group method,which is called automated junctions group method.
针对河网计算中应用较广的汊点分组解法,分析其无法实现分组自动化的不足之处。
4) branch channel diversion
汊道分流
5) braided river
分汊河道
1.
Characteristics of water flow and sediment motion in braided river and their effects on fluvial evolution;
分汊河道水沙运动特性及其对河道演变的影响
2.
There are many braided rivers of two braches or many braches in our country, such as Yangzi River, Beijiang River, Xijiang River, Xinyi River in the north of Jiangsu Province etc.
分汊河道是河流中常见的一种河型,在我国的大小河流中广泛存在着两汊和多汊河道,如长江、北江、西江、苏北的新沂河等。
6) bifurcated channel
分汊河道
1.
Spur dike has a critical effect on the diversions of main channel and branch channel in the process of regulating bifurcated channel,and different layout of spur dike has a different effect on diversion ratio.
分析了分流比的选取模式,通过概化水槽试验,研究了丁坝布置情况下过水面积、流量、丁坝位置对分汊河道分流比的影响,并对大量试验资料进行分析总结,比较了从无丁坝布置到布置丁坝后分流比的变化规律。
2.
The goose\|neck bifurcated channel is the one with the most complicated shape, the biggest broaden\|rate and the largest in number in the middle and lower reaches of the Changjiang(Yangtze) river, and its length is almost 40 percent of that of the whole bifurcated channel.
对鹅头型分汊河道的形成条件及演变特征的研究是制订相应的规划整治措施 ,稳定河势 ,使其朝着有利的方向发展的前提条件 ,也是实际工程迫切要求解决的问
3.
The bifurcated channel is a common river type, and there exists realistic meaning for the study on the division characteristics of the bifurcated channel.
分汊河道是一种常见的河型，其特性研究在河道整治工程中有着重要的现实意义。
补充资料：分汊
与辫状河不同之处在于它的汊河数目较少，流路较为稳定，由长期出露的沙岛隔开。这种河型在长江中、下游普遍出现。所以有人把它列为单独的类型。在长江上，分汊之间的沙岛称为江心洲。江心洲的雏形是水下淤积的浅滩。如果有某个浅滩逐渐稳定和堆高，就有可能在枯水期不被淹没，出露为心滩，将水流分向它的两侧，形成两股汊道。两股汊道逐步被拓宽，变弯，其中的环状流就会进一步将心滩加大加高。经过几次大洪水以后，心滩被堆高到超出乎滩水位，生长植物，进一步稳定，就成为江心洲。有的江心洲上还有人定居开垦。长江上的江心洲不胜枚举，南京北面的八卦洲就是一个好例子。
江心洲多半形成在长江节点的上下游。所谓节点就是两岸有基岩高地夹持、水狭流急的地方。节点上游壅水，下游河道突然放宽，都是容易落淤的地方。江心洲为什么特别出现在长江中下游呢?这与该区段的地质构造和河岸物质组成有关。因为从地质构造上看，这段长江上基岩隆起与凹陷交替出现；从河岸物质看，这段黏土成分不多，所以易受冲蚀而展宽。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条