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分析曲线

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The effects of different parameters and cross-sections on axial velocity, the distribution of secondary flow, temperature field, turbulent kinetic energy, wall friction coefficient and wall Nusselt number are analyzed in detail.

详细分析了充分发展的和发展段的湍流管道内,不同截面形状和几何参数对轴向速度分布,截面二次流结构,湍动能,曲线管道摩擦比,温度分布和曲线管道Nusselt系数比等管道流动和传热特性的影响。

The results are the following: When calculating the motion mass, it is better to use idler's equivalent mass instead of the rotating part mass and serial idler's rotating inertias and equivalent mass are calculated. The accurate analysis result for the deflection curve length of the belt shows: The error calculated by the approximate parabola length is lower than 10〓. Thus the approximate method is accurate enough for calculation. The relations between the running resistances coefficient and the belt velocity are studied by experiment, which are the bases for calculating the linear coefficient values between them.

得出:在计算参与运动质量时对托辊应采用托辊的等效质量而不是目前采用的托辊旋转部分质量,并计算出了系列的托辊转动惯量和等效质量;对输送带的挠曲线长度进行了精确的分析,结果表明:采用近似的抛物线长度计算方法其误差在10〓以下,因而得到在计算输送带挠曲线长度时采用近似的抛物线具有足够的精度;对输送机运行阻力系数与带速间的关系进行的实验研究,得出阻力系数与带速线性关糸的系数值。

The theories of multi member function"s extremity value, Hooke Jeeves mode searching method solving wholly complex problem of extremity value and uniformity design method, one new and efficient method to choose test point, are applied to establish the two-dimension oil well orbit optimized model. The shortest length of oil well orbit curve is regarded as this model"s object and all kinds of effecting parameters are analyzed.

通过引入多元函数极值理论、求解复杂极值问题的HookeJeeves模式搜索法及一种较为新颖和高效的试验点选择方法:均匀设计法,建立以最短油井轨迹曲线长为目标的二维油井轨道优化设计模型,并对影响井轨迹曲线的参数进行了较为详细的分析。

Objective :To assess the overall value of lobulation sign and deep lobulation sign in the differential diagnosis of peripheral lung cancer and pulmonary tuberculoma in CT images.Methods : Firstly , articles about CT differential diagnosis between pulmonary tuberculoma and peripheral lung cancer were selected ,which were published in the period(from January 1990 to December 2008),and useful data were extracted.Then Meta-analysis was done using Meta-disc software,and SDOR value calculated.

方法搜集1990年1月至2008年12月国内外公然发表的关于四周型肺癌与肺结核球CT鉴别诊断的文献,对文献进行筛选,应用Meta-disc软件对符合条件的原始研究进行质量评估、异质性检验,计算阳性似然比、阴性似然比和诊断比值比,最后汇总敏感性和特异性,绘制SROC曲线并计算曲线下面积来综合评价分叶征及深分叶征在CT检查中对于四周型肺癌与结核球鉴别诊断的价值,进行敏感性和特异性分析。

Many methods can be used to restore formation denudation thickness , such as stratigraphic correlation, deposition velocity, well log, compaction curve, vitrinite reflectance, sporopollen and wave analysis method, etc.

地层剥蚀厚度恢复的方法有很多种,例如地层对比法、沉积速率法、测井曲线法、压实曲线法、镜质体反射率法、孢粉法及波动分析法等。

Turned perfect complete stress-strain curve in uniaxial compression test into Cauchy stress- logarithmic strain curve,so the tangential modulus can be acquired which is available for analyzing large deformation.

将材料常规单轴压缩全过程的应力-应变曲线转化为真实应力-真实应变的曲线,从而得到可用于大变形分析的切向弹性模量。

This paper first analyzes the character and parameter demarcating of Logistic Curve and Picketage Model s S Curve, then puts forward a traffic forecasting method based on this two curve models.

本文分析了逻辑斯蒂曲线和定标模型S曲线的特征和参数标定。

Longitudinal magnification describes the longitudinal conjugated property of ideal optical system ,on mathematic form,it is the slope of the imaging curve.

纵向放大率描述理想光具组的纵向共轭性质,在数学形式上是物象曲线的斜率,从纵向放大率的定义出发,结合物像曲线,分析了理想光具组的纵向共轭规律,并举例说明其实际应用。

Langbianensis tree species in Yunnan Province was established by means of nonparametric Kernel Density Estimation method.

以建立云南思茅松林树高曲线模型为例,在分析最小二乘估计存在缺陷的基础上,采用非参数核密度估计建立树高曲线模型。

Since two curves have the same coordinates and unit normal vector at the contacting point, the problem of the mesh of two planar curves is transformed into an ordinary differential equation by vector analysis. We have the solution to the equation by numerical method and computer calculation. After repeating the way of computing the solution to the equation, we have the contacting points.

因两曲线於接触点的位置相同,单位法线向量相等,由向量分析使曲线接触问题转变为常微分方程式,藉助数值计算与电脑运算得到方程式解,重覆计算方程式的解即可得每一接触点的位置。

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I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。