结构公式

Direct calculation is also presented in scantling determination, which required in larger or more complex vessels, to confirm the adequacy of the formula based scantlings, and to give reduced scantlings, especially when optimization routines are incorporated.

对于大型和复杂的船体结构也可采用直接计算法来决定构件的尺度，以保证尺度计算公式的准确性，特别是当采用优化程序时，还可得到更小的尺度结果。

Results of analysis show that Generalized Paris Law can consider the complex crack propagation in the material of the pavement structure. The fatigue life of the pavement increases with increasing thickness of surface layer in a power function. Use of a thicker surface layer may extend the service life of the asphalt pavement. The fatigue life increases with decreasing modulus of surface layer in a power function with a negative exponent. However, since reduced modulus would scarify the structural strength and might cause rutting-related distress, caution should be taken when using low modulus materials for improving fatigue performance of asphalt pavements. The fatigue life increases with increasing modulus of base material in a power function. However, the fatigue life can not infinitely increases with increasing modulus of the base.

计算与分析表明：广义Paris公式可以考虑沥青路面结构内材料复杂的裂缝扩展：沥青面层的疲劳寿命随着面层厚度的增加以幂函数的形式增加，适当增加沥青面层厚度可以提高路面的使用寿命；沥青面层的疲劳寿命随着面层材料模量的降低以负指数的幂函数形式增加；由于材料模量的降低将牺牲路面的整体强度并可能引起路面车辙类损坏，以此提高疲劳寿命的方法应慎重对待；沥青面层的疲劳寿命随着基层材料模量的增加呈幂函数的形式增加，但由疲劳方程可以看出，寿命并不是随基层材料模量的增加而无限的增加，疲劳曲线在经过一个上升段后，逐渐趋于一个常数值，这说明，这时基层模量对寿命已不作关键性贡献；随着底基层厚度的增加，面层的疲劳寿命近似地呈线性函数增加，但效果并不很明显。

The design of self-priming centrifugal pipeline pump is discussed,the primary hydraulics and structure design formulas and diagrams are offered.

论述了石油化工用自吸离心管道泵的设计方法，给出了主要的水力设计与结构设计的计算公式与图表。

The project discussed influence of damp force to the parameter of MR damper and carried finite element analysis of MR flow field and shearing stress.

推导出Nano-MR阻尼器阻尼力的计算公式。讨论了阻尼器结构参数对阻尼特性的影响。

Snaky well is a new type of complex well.

蛇曲井是一种新的复杂结构井，其生产井段起伏较大，不能直接用常规水平井产能公式计算其产能。

Through the theory analyse, we gave the concept of broad sense and the formula of drag force, then analysed main facts of drag force; based on existing experiment datas and theory results, the thesis discussed calculate method for hydrodynamic pressure and pulsating pressure which effect on soleplate, at the same time, based on special structure of local material dam overshot spillway and essentiality of safe flowing, we gave advice on fixing parameter.

通过理论分析，提出了广义拖曳力的概念并推导出拖曳力的计算公式，分析了影响拖曳力的主要因素；根据已有的试验资料及理论成果对作用于底板的动水压力和脉动压力的确定方法进行了探讨，并依据当地材料坝坝体溢洪道的结构特殊性和泄水安全的重要性，对有关参数的合理取值提出了建议。

Aiming at the structure characteristics of direct ejection type air-bubble sparger, the article analyzed the hydrodynamics model of the air ejecting outflow of the air-bubble sparger.

针对空气直接喷射式气泡发生器结构特点，分析了气泡发生器气体喷射出流的流体动力学模型，通过试验室和工业型浮选柱的清水气泡发生试验，修正了气泡喷射出流理论计算公式，对工业型浮选柱的大型化研制提供一定的理论依据。

The structure of the stationary distribution is shown and the general formula for determining this distribution is given.

并对其平稳分布结构进行研究，进而得到求平稳分布得一般公式，主要结果见命题2.4.1。

A practical formula for structural safety classification is derived in the present paper based on Taylor's expansion. It is illustrated to be useful by some examples. Then this practical method is compared with the traditional method

本文利用泰勒展开法推导了结构安全性等级划分的实用公式，通过数值算例验证了该方法的可行性，并将该方法与现行规范中的原有鉴定方法进行了比较。

The idea occurred to me that the relative steepness of the J-distributions on the scales that Woo used to measure custom conformity might also be predicted by the structural dynamics formula.

构思发生，我认为相对陡直的J型分布，对尺度的胡用来衡量定制整合也可能预测由结构动力学的公式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。