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Using the result of foreign scholar, combining the situation of our country, the author set a derived demand model to explain the reason of the inter-city land price differences.

本文借鉴国内外学者有关研究成果，结合我国实际国情，采用了引致需求模型来解释城市间地价水平差异的原因。

Based on the results of field experiment and regional soil phosphorus rough estimate, the determinacy non-mechanism transport model was set up.

在土壤剖面中，不同形态的磷素含量从上到下总体呈下降趋势。

E. , only are random variables, pointed that every objective important degree commonly is different, built the equivalent deterministic weighted programming model based on fuzzy set theory for multi - objective fuzzy stochastic linear programming.

研究了资源量b为随机变量的多目标随机线性规划问题，指出了多目标规划问题的目标一般不是同等重要的，针对多目标模糊线性规划问题，利用模糊集合理论建立了相应等价的确定性加权模糊随机规划模型。

For example, Gilbert et al.(1985) developed a model that optimizes the selection and layout of a set of connected cells, such that the cost of purchase and development is minimized, the distance to 'detractor' cells is maximized, the distance to 'amenity' cells is minimized, and the 'diameter' of the layout is minimized.

比如说，Gilbert 等人建立了一个使一系列相连单元的布局最优化的模型，因而购置所需的费用被最小化，距离"谤者"单元的距离最大化，到"舒适"单元的距离最小化，布局的直径最小化。

A leave-one-out error bound for SVR is derived in this paper. After the SVR model is obtained for a given set of hyperparameters, the bound can be computed with very little additional work. Considering the properties of the bound, an optimization method based on difference quotient is proposed.

本文针对当前SVR推广误差的估计大多需要较大计算费用的情况，推导出SVR的留一法误差的易于计算的界，这个界在得到学习算法的解后需要很少的额外工作量。

The involute tooth curve and transition curve mathematical model of gear drive with few teeth number difference is set up.

计算机可视化动态模拟是近几年发展起来的一门新型学科。

To obtain state matrix A of linear differential algebra equation, the equation set of the model, then the eigenvalue of state matrix A and its effection on sensitivity of excition system are calculated by QR method.

对模型方程组进行线性化，得到线性微分-代数方程的状态矩阵A；使用QR法，计算状态矩阵A的特征值及特征值对发电机励磁系统参数灵敏度。

Appling least absolute deviation to calculate variable parameter of differential equation,robust grey model RGM(1,1) has been set up and used to forecast the settlement tendency of building.

将最小一乘法应用于微分方程变量参数求解，建立稳健灰色模型RGM(1，1)，并将其应用于建筑物沉降预报和比较。

A simple linear model for the fixed diffraction angle was set up by numerical calculation and parameter fitting.

针对卫星光通信中衍射角固定的应用情况，通过数值求解和参量拟合，建立了一个基于平面方程的简单控制模型。

It includes:the items and methods of the investigation into motor vehicle exhaust emission; how to calculate the emission factor;how to choose and set the atmospheric pollutants diffuseness model in urban street;how to calculate the quantum of vehicle exhaust emission and the concentration of traffic pollutants diffuseness in street in traffic network,and how to evaluate traffic pollution of traffic network load.

以可持续发展的城市交通规划理念为基拙，探讨了城市交通规划过程中机动车对空气污染的影响进行分析的关键技术：机动车尾气排放的调查内容与调查方法、单车排放因子的确定、城市街道污染物扩散模型的选择和建立、交通网络环境条件下机动车尾气排放量和街道污染物扩散浓度的计算及交通网络负荷条件下交通污染评价。

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％。