长宽比

研究结果表明，在本文所研究的炉膛结构条件下，矩形空气喷口长宽比为1.5、空气喷口与燃气喷口的间距为43mm时，NOx排放能够得到有效的控制。

The results show that NO-x emission is the least when air-jet length-width ratio equals to 1.5 , and the space of the air-jet and fuel-jet is 43 mm .

31份野生蜡梅的叶片长度、宽度、长宽比、叶面积、叶脉，以及百叶干重均存在极显著的差异（P0.01）。

The traits such as the length , width , length-width ratio , leaf area , number of leaf vein and dry leaves weight of mature leaves were significant different ( P0.01 ) in 31 randomly selected materials .

LED金属灰将提供维度、力量、映像点信息，长宽比和其它信息。

LED CalcX will provide dimensions , power , pixel info , aspect ratio and other info .

制品长度对前缘冲破的影响存在一个最佳值，在小宽度情况下，长宽比增加N值也随之增加；

There was an optimal value in the relation between the breakthrough phenomenon and the length of rectangle goods .

叶纤维细胞的长宽比与不同的施N水平和施K水平之间存在极显著的二元线性回归关系。

The duality regress relations of ratio of length and diameter and fertilizer N , fertilizer K indicate significant .

SR机器可能提供各种各样的长宽比和明显杆拓扑结构。

SR machines can offer a wide variety of aspect ratios and salient pole topologies .

影响剑叶长宽比的5个QTLs分别定位于第1,3和7染色体上；

Five QTLs were related to length / width on chromosomes 1 , 3 and 7 respectively .

增大截面长宽比会减弱FS的约束效果；

The FS confinement effect is weakened due to the increase of the ratio of section length to width .

同时，以Visualc++6.0为平台，实现了车流量和平均车速的检测，并提出了以车辆长宽比为依据的车型识别思想。

The actual effect is tested . Traffic flux and average speed detection are realized based on Visual C + + , in addition , the idea is brought forward that to recognize vehicles by its aspect ratio .

相同电场的作用下，量子阱线具有不同的长宽比时，杂质的Stark能移明显不同，而且电场越强这种结构的不对称性的影响越大。

Under the same external electric field , the impurity Stark energy shift is obviously different with the different aspect ratio of the quantum well wires .

当散射体的截面为长方形时，截面的长宽比为1.2时XY模的带隙最宽，长宽比为1时Z模的带隙最宽；

The largest band gap appears when the proportion of length and width of scatterers ' rectangle cross-section is 1.2 for XY mode and is 1 for Z mode ;

结果表明，非保守FGM斜板的临界颤振荷载随梯度指标和夹角的增大而减小，随长宽比的增大而增大。

The effects of the gradient index , skew angle and aspect ratio on the stability of the non-conservation FGM skew thin plate were analyzed .

随着CaO含量增加，晶粒的长宽比增大。这表明CaO添加剂在晶粒异性生长中起了重要作用。

As CaO doping concentration increased , the aspect ratio of mullite grains was increased , which implied that the addition CaO played a major role in the anisotropic growth of mullite .

gnuplot使用给定的长宽比能否成功绘制图可能受到终端能力的限制。

The success of gnuplot in drawing a graph with a given aspect ratio may be limited by the capabilities of the terminal .

通过对不同方形系数、船体长宽比和尾部UV度等参数的尾部伴流场的研究，探明这些参数变化对伴流场的影响趋势。

Through the study on wake fields at different block coefficients , length to breadth ratios of the hull , UV degrees of stern form and other parameters , the relationships between these parameters and their effects on wake field are verified .

本文利用TBSA计算了不同长宽比和不同角柱刚度筒体结构的受力情况。

In this paper , the tube-in-tube structures ( TTS ), which are different in aspect ratio and corner column stiffness , are calculated by TBSA .

泰兴杂交种F1代2年生子代苗的木材密度、纤维宽度和纤维长宽比均无显著差异，而木材含水率、纤维长度和微纤丝角存在显著或极显著差异。

Wood density , fiber width , fiber length to width of Taixing two-year hybrid seedlings had no significant variances , while fiber length , microfibril angel and water content of wood showed significant variances . 6 .

水稻粒型（谷粒的长度、宽度及长宽比）是受多个数量性状基因（QTL）控制的复杂性状，对水稻产量和品质都有影响。

The grain shape , including grain length , grain width and a length / width ratio , is complex trait controlled by QTL , which may have an effect on both grain yield and quality in rice .

MEMS中内部流动的特点，即流速低和大的长宽比的特点，引起椭圆性问题，即出入口边界条件相互影响需要协调的问题。

The specificities of the internal flows in MEMS , i. e. the low speed and the large length to width ratio , result in the problem of elliptic nature of the necessity to regulate the inlet and the outlet boundary conditions that influence each other .

首先根据颜色特征和面积、长宽比等简单形状特征提取候选目标，然后将候选目标与Gabor滤波器作卷积来提取特征向量，将特征向量输入支持向量机进行分类，识别出实际的目标。

Firstly , candidate targets are extracted based on color threshold and simple shape features . Then , images containing candidate targets are convoluted with the Gabor filter , from which the feature vector is extracted . The target recognition is performed by the support vector machine .

纵向上，相同年轮的管胞长度和长宽比随着树干的增高先变大，在3.3m或5.3m处达最大值后又逐渐变小。

At the same ring tracheid length and length-width ratio increase progressively from the base upward , maximize at 3.3m and 5.3m , and then decrease to the top of the tree .

不同生长环境全树及0.5m树高处的早材、晚材管胞长度，管胞宽度，管胞长宽比，差异均不显著。

Secondly , the differences of tracheid length , tracheid width , ratio of length to width of both early wood and late wood were insignificant among the whole trees and the trees of 0.5 meter height as well in different growth environments .

不同于小波变换，Contourlet变换的多方向性和基函数支撑区间具有随尺度长宽比变化的长条形结构，使得它能有效地捕捉图像信息中的几何结构特征。

Different from the wavelet transform , the multi-directionality and the property that the support of basis functions has a variety of elongated shaped with different aspect ratios make it effectively capture the geometric structure features of the image information .

指出当波导的长宽比在20～25之间时，波导输出不均匀度在1dB以内，实验结果与此吻合。

It is pointed out that the nonuniformity of the rectangular waveguide will be less than I dB if the length to width ratio is chosen to be ranging from 20 to 25 . The experimental results are in good agreement with that of the theoretical Prediction .

矩形板长宽比不同时，条纹模式也是有变化的。

Rectangular plate with different aspect ratio have different striped pattern .

大长宽比单元有限元误差分析及高精度计算

Error analysis of high-aspect-ratio finite elements for 2-D boundary layer simulations

找到了一些条纹模式的特殊长宽比。

Found some special aspect ratio of the stripe pattern .

终端驱动程序使用终端的默认长宽比。

The terminal driver uses the default aspect ratio of the terminal .

外磁场中多种长宽比的矩形超导网络相边界

The phase boundary of various rectangle superconducting networks in extenal magnetic field

发现一些模态存在对应的一个或几个特殊长宽比。

Found that some modes exist one or several special aspect ratios .