结构公式

According to the empirical formula to determine of the equipment structu- re size, and the various components size.

对机械式单斗挖掘机的结构进行了介绍，并斗杆的结构进行了分析，根据经验公式确定了斗杆的结构尺寸。

It's the first time that from the angle of computational mathematics combined with the structure model of parallel machine, the parallel degree of the relevant algorithms in orthopaedics clinic engineering modeling system, such as piecewise cubic Lagrange interpolation formula, piecewise cubic Hermite's interpolation formula, cubic spline, Chebyshev multinomial fitting algorithms, least square method and contour curve multinomial algorithms, were discussed.

论文首次从计算数学的角度并结合并行机的结构模式出发，讨论了在骨科临床工程造型系统中可能涉及的如分段三次拉格郎日插值公式、分段三次埃尔米特插值公式、三次样条函数、切比雪夫多项式拟合算法，最小二乘法以及轮廓曲线多项式求值算法的并行度。

This thesis is composed of four sections, and its theme is concerned with Lagrange inversion formula In section one, some applications of Lagrange inversion related to Roridan group is sketched.

本文共分五章，主题是研究拉格郎日反演公式所包含的一个拟卷积公式和它的指数结构以及组合证明。

After treatment and analysis of 150 domestic test data, probabilistic characteristics of displacement ductility factor of reinforced concrete frame columns and frames fits natural logarithm normal distribution and a functional expression is proposed by a statistical regression.

通过对国内150个钢筋混凝土框架柱和框架试验数据的整理和分析，得出位移延性系数的试验结果服从自然对数正态分布，并回归得到考虑多因素的位移延性系数经验公式，该公式可供钢筋混凝土框架结构抗震设计和评估参考。

By using the full parametric finite element numerical simulation,a series of data is obtained,and the relationship between the stress and structure parameters of plate-fin is analyzed.

通过全参数化的有限元数值模拟，获得了一系列数据，分析了翅片和隔板中应力与结构参数的关系，结果表明翅片和隔板中应力值较原经验公式的计算值小，尤其是隔板中的应力与原公式的规律也存在明显差别。

Further, compared with the standard response spectrum of our country, the results showed that the values of the elasto-plastic acceleration response spectra in the long period cycles are overhigh, damping attenuation coefficients are also larger.

进一步比较弹塑性反应谱和我国规范得到的反应谱，结果显示规范的加速度反应谱在长周期段谱值过大，阻尼衰减系数也较大。基于单质点弹塑性地震分析的结果，在我国规范反应谱公式的基础上提出的隔震结构弹塑性反应谱公式。

The conventional numerical simulation of a reverberant field as a launch acoustic environment was introduced. Following the reciprocity theorem used in the coupled FE-BE model, the structural response due to reverberant acoustic excitation was substituted by the sound pressure caused by force excitation on the structure, then the output response power spectrum density of the coupled model subjected to reverberant environment was evaluated based on the stochastic analysis principle.

首先介绍了传统的构建混响声场的数值模拟方法；其后利用声振耦合中的互易定理，将混响声场的激励问题转化为结构模型上力激励引起的场点声压响应问题，并采用随机分析原理，用谱分析方法推导了结构在混响声场激励下的响应计算公式；最后建立了航天器典型结构的声振耦合模型，并分别用传统方法和利用互易定理的方法进行了数值模拟。

But because of the planar structure of mathematicsformulas, recognizing by merely enlarging the symbol library will not record the image infor-mation completely.

而数学公式由于其存在二维结构，单纯通过扩充识别系统字库无法完全记录公式图像所含全部信息。

This text proceed with the theory of the vibration, utilize typical elastic hinge law analyze structure dynamics characteristic when the blade is quivered to instability, and then use relevant knowledge of blade vibration to simplify the model and the aerodynamic force of the vibration. Through the simplification, we can get the equation of the blade, which is dispersed to its instability. Then VISUAL BASIC procedure is utilized to work out thecharacteristic value of vibration and the vibration frequency. At last comparing the result which is calculated by the above-mentioned theory formulae with the result which is calculated by internationally agreed procedure ANSYS to verify the accuracy of the formula of reduction.

本文从振动理论入手，利用最为典型的弹性铰链法分析叶片发生颤振失稳时的结构动力学特性，然后对振动模型及振动时所受的气动力进行简化，利用简化方程得到叶片发生发散失稳时的振动方程，利用编制的VISUAL BASIC程序解出振动的特征值并得到振动频率，最后分别通过上述的理论公式和国际通用的有限元程序ANSYS对风力机叶片模型进行发散失稳时的频率计算，验证简化公式的准确性。

The SEM analysis shows the nano-size roughness on the plasma treated or chemical surface modified wool scales.Wenzel equation and Cassie and Baxter equation are used to illustrate the relationship between surface roughness and contact angle,then to reveal the reasons why surface modifications are able to impart an improved water repellence and oil repellence and stain resistance to wool.

SEM研究结果表明，经低温等离子体表面改性或特定化学改性后的羊毛鳞片表面呈现纳米尺度的沟槽和凹凸结构，应用Wenzel公式和Cassie and Baxter公式阐述了表面粗糙度与接触角的关系，揭示了羊毛表面改性对于提高拒水拒油整理效果的原因所在。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。