变化系数

The osculations are conducted on the two-dimensional hydrofoil section,based on a single-fluid model of the cavitation:the liquid/vapor mixture is considered as a homogeneous fluid whose eompsition is regulated by mass tranfer equation.The RNG k-ε turbulence model with modified eddy viscosity coefficient is used for computing,and the coefficient is related to the vapor and liquid densities in cavitated regions for simulating the cavitating flow.

实验采用高速录像技术观察了云状空化随时间的结构变化，应用 LDV 测量了云状空化条件下翼型周围的速度分布；采用 N-S 方程和基于空泡动力学方程的空化模型计算了绕水翼云状空化流场，湍流模型采用了 RNG k-ε方程，为了改善空化流动的计算精度，引入了一种与空化区域水汽相密度相关的系数，对湍流涡黏性系数进行了修正。

The main contents are as follows: In chapter 1, systematic conclusions of intension and characteristic of sustainabledevelopment of real estate industry are made after the review of home and foreign research achievements; Chapter 2 analyzes status quo and trait of Chinese real estate industry in 2005, from views of investment, exploitation and sale, three parts of real estate industry, with the help of massive graphs, as well as elaborates main problems existing in real estate market; In chapter 3, the gambling thought is used to divide the developing process of Chinese real estate market into three phases, according to the change of main market participators and their behaviors; Finally, in chapter 4 and 5, a system with 72 indices in research on sustainable development of real estate industry in china is established, and theories of Catastrophe, Cosines Vector Included Angle, Entropy and CRITIC are applied to appraise the current situation of sustainable development of real estate industry in 31 provinces and cities in 2004, then the consistency test of appraisal results is carried out by Kendalls Coefficient of Concordance and Spearman Correlation Coefficient.

本文的主要内容如下：第一章在查阅大量国内外有关可持续发展理论、房地产业有关研究文献的基础上，评介了有关理论概念，并对房地产业可持续发展的内涵进行归纳、总结；第二章从房地产投资、开发和销售三个环节入手，结合大量图表，分析2005年中国房地产业的发展状况和特点，揭示我国房地产市场存在的主要问题；第三章利用博弈思想，根据市场参与主体及其行为的变化，将中国房地产市场的发展过程分为三个阶段；第四、五章构建了一个由72个指标构成的房地业可持续发展指标体系，利用突变评判法、向量夹角余弦法、熵值法和CRITIC法对2004年全国31个省市的房地产业可持续发展状况进行评价，并运用肯德尔和谐系数和斯皮尔曼等级相关系数对评价结果进行一致性检验。

The hoop tension force is axisymmetrical about the tension direction and increase from the top position to both sides. The distribution of hoop tension force is even with small friction coefficient, but will increase rapidly from top to side positions, which subsequently result in necking and fracture near the edge of gauge section.

结果表明：采用正压力线性变化假设所得的切向力分布规律与拉伸实验结果吻合较好；切向力关于拉伸方向呈轴对称分布，从正上方到两侧逐渐增大；当摩擦系数较小时，切向力分布较均匀，但当摩擦系数较大时，切向力从正上方到两侧迅速增大，试样的颈缩和断裂发生在标距段内靠近标距边缘的位置。

Results show that the incre asing of attack angle,the total pressure recovery chanˉ ges a little and mass flow ratio reduces.However,flow distortionind ex increasers obviously.

结果显示，随着来流攻角的增大，此进气道总压恢复系数变化不大，流量系数逐渐降低，而流场畸变则明显增大。

The results show that the rate of heating decreases due to the growth of oxidation layer in soaking process when the thermal resistance between gas and slab increases. The quantity of loss of iron scale increases with the increase of the coefficient of air consumption under the condition of certain soaking temperature. When the coefficient of air consumption is certain, the quantity of loss of iron scale increases with the increase of soaking temperature rapidly. The results of numerical simulation is consistent with experimental ones, and the error is very small within the range of soaking temperature in CSP line.

研究结果表明：在加热过程中生成的氧化层增大了换热热阻，使钢坯的加热速度减小；钢坯氧化烧损量随加热速度的增大而减小；当达到同一特定的均热温度时，钢坯氧化烧损量随空气消耗系数的增大近似呈线性递增；当空气消耗系数一定时，钢坯氧化烧损量随均热温度的提高而急剧增加；数值计算结果与实验结果变化趋势一致，并在CSP均热温度范围内较吻合。

Wideangle parabolic approximations to wave equation usually lead to nonconstant differential migrators with their coefficients varying with lateral velocity variations, and hence require a finitedifference numerical implementation.

波动方程宽角抛物逼近得到的通常是非常系数的单程波传播算子，其系数是速度横向变化的函数，因此需要利用有限差分进行数值实施。

Problems ,such as selection of the corresponding stuff, selection of the surge ponderance in the cavity and the influence of the minishing prism couplers on the mode of the ring laser cavity are discussed.

对采用棱镜耦合器的全反射棱镜式环形激光器的耦合输出特性进行了理论研究，导出了有&楔形&间隙的棱镜耦合器的反射系数和透射系数表达式，给出了反射率和透过率随&楔形&间隙高度变化的理论计算曲线，进而研究了有关材料选取、腔内振荡分量的选取及减小棱镜耦合器对环形激光腔内模式的影响等问题。

And both YH are higher than the corresponded Yobs, these maybe because the YH not susceptible to predatory, death, regeneration and so on.

进水中不同类型的基质会引起污泥内微生物菌群的变化，不同菌群的微生物其细胞产率系数和内源代谢系数等都不同，这可能是造成污泥产率差异的根本原因。

Fine varieties were reselected including three kinds of varieties from Lin′an, Anji and Chun′an areas, which have high and stable yield, early maturation and large fruit.

结果表明： 1所试山核桃优系有进一步选育品种的潜力，鲜果质量的变异系数最大，粗脂肪的变异系数最小； 2经济性状在地区间的变化没有一致性，但地域分布对山核桃出籽率，粗蛋白含量有显著影响。

The linearized model of the generator is set up, which takes the salient pole effect and the effect of the nonlinearation of the HVDC system. The changeable characteristics of each coefficients of the linearized model of generator and the coefficients affected by the nonlinearization of the HVDC system are simulated and analyzed.

建立了考虑发电机凸极效应和计及HVDC系统非线性影响的发电机线性化模型，并对线性化模型中的各系数的变化特性和HVDC系统的非线性对各系数的影响进行了仿真分析。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。