宽深比

对流量系数k影响最大的流道断面因素依次是水力半径、截面面积、宽深比和湿周，对流态指数x影响最大的流道断面因素依次是水力半径、宽深比、截面面积和湿周。

The impact on the flow coefficient order of hydraulic radius , cross-sectional area , breadth depth ratio and wetted perimeter ; hydraulic radius is the most important factor affecting flow index , followed by breadth depth ratio , cross-sectional area and wetted perimeter .

结果表明：峡谷的宽深比a/b及其断面的形状对SH波的散射有明显的影响。而且频率的变化对地面放大作用影响显著。

It is concluded that evident effects of differen width depth patios and shapes of canyon on SH wave scattering could be observed , and the influence of round amplification due to frequency are more significant .

微通道的几何结构对换热性能有显著影响，平均Nu数随微通道的宽深比增大而增大。

The significant influence of the geometry of microchannel on the thermal performance was found . The averaged Nusselt number increases with the increasing in the ratio of width to depth of microchannel .

潮沟的宽深比小，大多在8以下；沿岸堤发育，且多呈不对称状；

Small width-depth ratio , which is often smaller than 8 ;

矩形明渠宽深比和边壁糙率对流速分布的影响

Effect of width-depth ratio and boundary roughness on velocity distribution in rectangular open channel

大宽深比甲板货船中横剖面设计探讨

Probed into design of midship section of great bread depth ration decking cargo ship

黄河下游河槽横断面宽深比变化规律及河型判别研究

Tendency of Change of the Width to Depth Ratio and Channel Pattern at the Lower Yellow River

有顶盖衬砌渠道、涵管及卧管的最佳宽深比研究

Best Proportion of Width and Depth Between Sealed Square Lining Canal and Inclined Pipe Intake or Culvert

加固区宽深比越大，下卧层受力越大。

The bigger the ratio of width to depth is , the greater the stress of substratum has .

并分析了光波导的扩散深度、扩散宽深比、钛条宽度对调制器性能的影响。

The influences of diffused depth , diffusion width-depth ratio and width of Ti strip on modulator performance are analyzed .

由于加固区具有一定的整体性，加固区宽深比也将对并联效应产生影响。

Because reinforced body has some characters of integrality , the ratio of its width to depth also affects the parallel effect .

影响汇流口的主要控制因素有：汇流比、汇流角、河床高差、宽深比、汇流口下游干流弗劳德数等。

All of them are controlled by following factors : discharge ratio , junction angle , difference in bed height , width to depth ratio and Froude number downstream the confluences .

该文对公路矩形断面渠道及涵洞具有净空高度条件下排水、输沙水力最优断面理论进行了分析，得出最佳宽深比设计参数。

The article analyzes the optimal drainage and sand-conveying hydraulic section theory under the clearance height condition for the rectangular sectional channels and culverts of the highways , and gives the optimal width-depth ratio design parameter .

主河槽过流面积、主河槽河床平均高程是判别河道萎缩的必要因子，而断面宽深比不是必要因子。

It is suggested that the change of wetted-area and main channel bed elevation of a cross section are the two main factors to judge channel shrinkage , but the ratio of width to depth is not necessary .

以水流切力、河流功率以及无量纲切力Sd/D50来表示水流强度，而以宽深比和无量纲河宽来间接反映河岸约束性，从而在一定程度上克服了河岸约束性难以定量表达的困难。

The ratio of channel width to depth and a dimensionless channel width index are used to reflect the constraint of riverbank on stream flow , thereby to overcome the difficulty that the bank constraint cannot be expressed quantitatively .

本文对裂缝开槽的参数（宽深比）进行了分析，从开槽的理论宽度和实际施工的宽度进行详细的分析，得出了较好的开槽的参数（宽深比）。理论计算得理论图。

This thesis analyzes the crack slot parameter ( width - deep ratio ), Carries on the detailed analysis from the slot theory width and the actual construction width , to obtain the better slot parameter ( width-deep ratio ) .

利用模拟实验开展了平原河流的水动力条件、河道宽深比、建筑物遮光效应和水温等因素对水体有机物长期降解过程的影响规律研究。

The relations between the degradation of the organics and factors like hydrodynamic conditions of plains river , ratios of width to depth of river , the effect of light hiding by building , water temperature and so on were studied by simulation experiments .

在概率积分预计方法的基础上，通过引入开采沉陷率和拐点偏移距关于宽深比的玻兹曼函数，建立了顾及不同开采充分性的开采沉陷预计模型。

On the basis of Probability Integral Prediction Method , a new subsidence model is established for the conditions of various mining extents by citing a Boltzman function to express subsidence rates and inflection point displacement about the ratio of mining wide to height .

达到临界采动距时，地表下沉急剧增大。地表下沉率（q′q）与开采宽、深比DH之间为负指数函数关系。

When it is near to the critical extraction distance , the rate of mining subsidence increases sharply and the mining subsidence ratio ( q ′ / q ) has the relation of negative exponential function with the rate of width to depth ( D / H ) .

我们可以大致总结这样一条规律：未经沉积后作用（压实作用等）的现代三角洲平原上河道向湖方向宽/深比减小，前缘上向湖心方向宽/深比增大。

It could roughly summarized such a law : width-depth ratio decreases in the direction of toward lake while width-depth ratio increases in the direction of leading edge in the channel of the modern delta plain if without postdeposition ( compaction , etc ) .

黄河从上世纪70年代，特别80年代中期以来，河槽萎缩严重，平滩河宽和宽深比减小。

Since the1970s , especially since the mid-1980s , the bank full width of channel of the Yellow River became smaller , the width to depth ratio became lower .

根据增加表面粗糙度可以增强微流结构的换热效果，在确定合理的加工尺寸的同时，选择了数控电火花线切割加工了94mm长、0.22mm宽、深宽比为77：1的长直微通道。

Increase in surface can reinforce heat effect of micro-flow structure . Therefore , with a reasonable processing size range , CNC Wire Electrical Discharge Machine is used to process a long straight microchannel , 94 mm long , 0.22 mm wide , and ratio of deep-wide is 77:1 .

为了进一步探讨门槽的空化特性，本文对一系列不同宽深比及不同圆角比的矩形门槽在高流速下（30m/s）进行空化流场数值模拟，并将该方法应用于实际工程中。

At a velocity of 30m / s , the cavitation of rectangular gate slots with different breadth depth ratios and different bullnose ratios was simulated . Numerical models were also applied in practical projects .