参数方程

The methods of parametric calculation and circuit equation calculation are also introduced.

阐述了超高压电压互感器冲击电压分布计算的电路模型、参数计算和电路方程计算的方法，计算了三种不同结构的模型，并就这些结构的特点对冲击电压分布的影响进行了比较。

Equation, a parametric method to solve this design problem is proposed.

矩阵方程的解，提出了二阶动力学系统的全维比例微分观测器设计参数化方法。

Keywords Feature;Parametric design;CSG equation;Fixture layout;and Geometric analysis of process

特征； 参数化设计； CSG 方程；夹具布局设计；工艺几何分析

A new complete parametric approach to solve matrix equation EΠS=AΠ+BKΠ+BL+P was proposed.

提出了一种新的求解矩阵方程EΠS=AΠ+BKΠ+BL+P的完全参数化方法。

The problem of solving the matrix equation AX-EXY=BY is studied in this paper. Firstly, a complete general parametric expression for satisfying this equation is obtained.

给出矩阵方程AX-EXY=BY的一个完全解析的、具有显式表达式和完全自由度的参数解。

Based on the proposed analytical general solution of the second-order Sylvester matrix equation,a parametric method of the state feedback eigenstructure assignment in a class of vibration second-order linear systems is presented.

基于二阶Sylvester矩阵方程的解析通解，给出了振动二阶线性系统的状态反馈特征结构配置设计参数化方法。

Finally,a numerical example shows the simplicity and effectiveness of the analytical general solution to the second-order Sylvester matrix equation and the parametric method of state feedback eigenstructure assignment.

最后，数值算例表明二阶Sylvester矩阵方程的解析通解和状态反馈特征结构配置设计参数化方法的简单有效性。

Based on the proposed ana- lytical general solution of the second-order Sylvester matrix equation, a parametric method of the state feedback eigenstructure assignment in a class of vibration second-order linear systems is presented.

基于二阶Sylvester矩阵方程的解析通解，给出了振动二阶线性系统的状态反馈特征结构配置设计参数化方法。

Based on the assumptions of semi logarithmic relationship between coefficient of permeability and void ratio as well as the relationship between effective stress and void ratio of soil, the method of Lie Group Transformation is applied to solve the non linear partial differential equation of large strain consolidation of homogeneous saturated clay in semi infinite domain.

基于有效应力与孔隙比以及渗透参数与孔隙比之间的关系的一些假定，采用李群变换求解考虑材料非线性和几何非线性的半无限均质土体大变形固结非线性偏微分方程，得到了一个不考虑自重固结的完全解析解。

Based on analysing the mechanism of substitution and compensation of ICT for labor in service sector, this dissertation constructed the cost function of translog form which was dual with the production function of the service sector, estimated the parameter of the share requirement equation affected by the factors of labor force, ICT and non-ICT, so that to calculate the Allen partial elasticity of substitution and the MES elasticity of substitution.

本文在分析 ICT 对服务业劳动的替代和补偿机制的基础上，建立与服务业生产函数对偶的超越对数形式的成本函数，估计出劳动力、 ICT 和非 ICT 等要素的需求份额方程的参数，以此计算 Allen 偏替代弹性和 MES 替代弹性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。