Fermat principle

用法例句

Analytical formulas for reflection ray tracing on the cylinder and cone base on the Fermat principle;

费马原理确定柱面和锥面反射点的解析表示式

A method of velocity tomographic inversion based on Fermat principle is presented by using travel times of transmitted waves from one borehole to another.

利用井间透射波旅行时，给出了一种以费马原理为基础的井间地震弯曲射线速度层析成象方法，数值计算表明了该方法比直射线法反演成象精度高。

The paper is to prove the refraction on two kinds of medium interfaces of electric displacement line using the boundary condition of the electric field and Fermat Principle.

利用电场边界条件和费马原理证明电位移线在两种介质界面上的折射。

Then,Fermat minimum time principle is used to deduce the compensation formula by considering the effect of both hole diameter and lithology.

设计了一种砂泥岩剖面的变井径、变岩性模型,分析了补偿声波测井产生的滑行波传播路径,按照费马时间最小原理推导出了同时考虑井径变化和岩性变化的声波时差补偿计算公式。

The Premium Principle Based On Dual Utility Theory and Reinsurance Requirement;

对偶效用下的保费原理与保险公司再保险需求

Ray equation is derived from Fermat's principle in variation form.

本文由费马原理的变分形式,导出光线微分方程。

Application of the Eikonal Method to the Study of Ray Equation and Femat s Principle;

应用程函方法研究光线方程和费马原理

Probe into Fermat's Rule of Dynamic Optimal Viability of Economic Systems

经济系统动态最优生存的费马原理探析

Fermat s Principle,Laws of Geometrical Optics and Light Propagation in Medium with Graded Refractive Index;

费马原理、几何光学定律与光线在折射率渐变媒质中的传播

Fermat's principle is not so much a computational device as it is a concise way of thinking about the propagation of light.

费马原理更多的是对光的传播的一种简明看法，而不是一种计算工具。

Another Mathematic Method to Prove Fermi Theory about the Travel of Light at the Highest or the Lowest Speed;

费马光行最速原理的另一种数学论证

Solve the Fermat-Steiner Problems in Light of the Least Potential Energy Theory;

用势能最小原理解决费马—斯坦勒尔问题

The Historical and Original State of Marx s Philosophical Revolution s Key Process;

马克思哲学革命关键环节的历史原象——从《未来哲学原理》到《关于费尔巴哈的提纲》

Polluter Pays Principle (PPP)

污染者付清理费原则

Principles of Marxist Philosophy

马克思主义哲学原理

Basic Principles of Marxism

马克思主义基本原理

Outline about Feuerbach and Marx s Problem;

《费尔巴哈论纲》与马克思的理论问题

The prove of Fermat Theorem and Birkhoff Proposition;

关于费尔马大定理和毕尔猜想的证明

Research on a Prerequisite of Fermat s Senior Law;

费尔马大定理一个必要条件的再研究

Implications of western Marxist dissimilation of consumption theories

西方马克思主义消费异化理论的启示

Electricity charge theory and level classification of medical guarantee system;

“电费付费原理”与医疗保障体系层次的划分

Marcuse’s consumption dissimilation ethics critique and theoretical reconstruction;

马尔库塞对消费异化的伦理批判及理论建构

The teaching reform of the basic principles of Marxism should take care of few relations;

马哲原理教学改革须处理好几个关系