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The mean square error of strength is a measurement of rock mechanics. A new model about relation between strength of rock and its sample size is set up.

研究表明，上述损伤力学模型可以近似地反映岩石的本构性能，强度分布方差是岩石材料物理性能的一种量度。

This thesis compared various related literatures and chose the RAS method with the least measurable error to set up the regional input-output model and to assess the linkage contributions and the economic multiplier impacts.

为分析区域经济效益，本研究藉由相关研究文献进行比较，选择以推估误差最小之RAS法作为区域系数推估方法，进行区域产业关联效果与经济乘数分析。

Furthermore, the metallogenic model of the metallogenic series in the region is set up here.

此外，还建立了该区域成矿系列的成矿模型。

For the methylal synthesis by fluidized catalytic distillation, an mathematical model of equilibrium stage was set up on some assumptions.

针对甲缩醛合成流化催化精馏过程，在合理假设的条件下，建立了平衡级数学模型。

Based on the combined control objective function for shape and mechanical properties,the mechanical properties and the shape are controlled simultaneously.Against the practical character of skin mill and on the premise of the assurance of finished product mechanical property,a set of elongation distribution model about skin mill is established on the criterion that...

在引入板形与力学性能综合控制目标函数的基础上，针对平整机的实际特性，在保证成品的机械性能的前提下，以基态弯辊力下带材的出口板形最好为准则，建立了延伸率分配数学模型；同时给出了相应的张力与轧制压力设定方法，并将其应用到生产实践，提高了平整产品的板形精度，具有较大的推广应用价值。

On the base that expands state investigation in two industries of city of old to the Anhui province state, set out from the angle of industrial economics, compose built to include straw power plant and straw supplier, paper mill tripartite inside model of rich play chess, between power plant of explain palpability straw and paper mill the competitive mechanism about straw raw material.

在对安徽省宿州市的两个产业发展状况调查的基础上，从产业经济学的角度出发，构建了一个包括秸秆供给商、秸秆电厂和造纸厂三方在内的博弈模型，阐明了秸秆电厂和造纸厂之间有关秸秆原料的竞争机制。

A new mind-set model seemed likely, too, to call for a new role for government.

一种崭新的思想观念模式看来也可能要求政府发挥新的作用。

MethodsBased on the structure of gene frequency matrix, we combine the method of multidimensional scaling analysis with the minimal spanning tree of graph theory, to set up the model of graph theory multidimensional scaling analysis.

提出基因频率矩阵的图论多维尺度分析方法，探讨该法在人类群体遗传结构研究中的应用。

Methods Based on the structure of gene frequency matrix,we combine the method of principle components analysis with the minimal spanning tree of graph theory,to set up the model of graph theory principle components analysis.

结果图论主成分分析的基本步骤可概括为：①对中心化基因频率的协方差矩阵进行主成分分析；②按图论原理求过m维空间n个点的最小生成树；③利用求"颈"法分割最小生成树；④将最小生成树整合到二维主成分散点图中构建图论主成分分类图。

Firstly,pre-time process including the construction of the model of cloth,the set of initial conditions and the collision detection are researched.Then,using minimizing intersection contour lines global method,the situation of cloth surface intersection is disposed emphatically,and the results of processing are evaluated and optimized.Finally,later process including the collision response,drawing and display are researched.

首先进行前期的布料模型构建、初始条件的设置以及碰撞检测；然后利用最小化相交轮廓线全局方法重点对布料表面相交情况进行了处理，并对处理结果进行了评价和优化；最后进行后期的碰撞响应以及绘制与显示。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。