查询词典 difference equation

A mathematic model of soil evaporation based on water surface evaporation by using the method of energy balance equation and microclimatology was established to precisely estimate the soil evaporation.

为了准确估算土壤在实际条件下的蒸发量，该文以水面蒸发量为参考，结合能量平衡方程及微气象学方法，推导计算土壤实际蒸发量的数学模型。

This paper established a mathematic model of soil evaporation based on water surface evaporation, energy balance equation and microclimatology method to precisely estimate the soil evaporation.

为了准确估算土壤在实际条件下的蒸发量，该文以水面蒸发量为参考，结合能量平衡方程及微气象学方法，推导出了一个计算土壤实际蒸发量的数学模型。

A differential equation describing this stochastic process is derived, and a statistical distribution function of microcrack size is obtained.

本文导出了描述这种随机过程的微分方程，利用微裂缝形成长大的位错机理，解出了微裂缝大小的统计分布函数。

Firstly, the kinematics equation of 6DOF serial-parallel micromanipulator has been derived from vector analysis method.

第二，通过对微操作特点的研究建立了一套有实用价值的显微视觉系统。

In order to analysis the performance of the compound four-bar parallel micromanipulator, its concentrated stress model is analyzed and dynamic characteristic is modeled by using of Lagrange equation.

通过分析单、双平行机构的优缺点，设计了一种低耦合位移和集中应力的复合四杆机构微操作器，建立了集中应力模型，并利用拉格朗日等式对其动态特性进行了建模研究；采用有限元方法对微操作器进行了静态和动态分析，并对其静、动态特性进行了试验测试。

This model includes the geometry character of the milling cutter, milling forces and its calculations, as well as the dynamic equation.

其铣削力模型包括了铣刀的几何特征、铣削力和动态铣削力计算，以及系统动力学方程。

A simple Mincer wage equation demonstrates that returns to education for wage-earners are 2% higher than that for self-employers.

简单的Mincer工资方程回归结果显示，工资收入者比自我经营者的教育回报率高出 2个百分点左右。

Based on the Mincer equation extended by the analysis of typical data,the use of least squares,measu...

基于明瑟扩展方程，通过对典型数据的分析，使用最小二乘法，测量了年龄、教育、经验等因素对第二代农民工劳动收入的是否存在影响，以及影响的方向和程度，并使用多分变量逻辑斯蒂回归(Multinominal Logistic Regression)方法进行了进一步验证。

This regression model is less ormore identical to the Mincer equation.

回归模型一定程度上与Mincer公式相似。

This paper estimated the return rate of human capital and main influencing factor in China in 1990 and 2000 based on classical Mincer income equation and variables of education,experience and region,and made the basic judgment about characteristic of human capital in our country.

以经典Mincer收入方程为基础，通过引入教育、经验与区域变量，对1990年和2000年我国人力资本收益率及其影响因素进行估计，形成了关于我国人力资本发展阶段特征的基本判断。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。