查询词典 parabolic cusp

A concave parabolic mirror with the diameter of 140 mm and the F number is 2 is tested by using this method.

利用该方法对一直径为140 mm，F数为2的凹形抛物面镜进行了测试实验。

In this article, a performance research and experimental analysis on compound parabolic concentrator were developed.

本文主要对复合抛物面型集热器进行了性能研究和实验分析。

Conical surface, 4. revolution parabolic surface.

旋转锥面，4。旋转抛物面。

In this paper four non-spherical surface types have been chose, ellipsoid surface, parabolic surface, pointed arch surface and conical surface. Base on the best fineness ratio, four surfaces are modeled, and their properties are analyzed in detail.

本文选择椭球面、抛物面、尖拱面、圆锥面这四种非球面面型整流罩，在基于整流罩最优的长径比的基础下，对各种情况分别进行建模，并对其光学性能进行了详细分析。

Conjugate gradient method, the use of Newton's law or the use of parabolic interpolation.

共轭梯度法，使用牛顿法或者使用抛物线插值法。

Any continuous curve can be closely approximated by a series of small parabolic segments.

任一连续曲线可以借一系列很小的抛物线线段较精密地近似表示。

The second part is the controllability of parabolic equation .

第二部分写的是，抛物方程的能控性。

In Chapter 7, a controllability problem for a three dimensional parabolic control system with nonlinear boundary is discussed.

本文的第七章研究了柱坐标系下的三维热传导方程的非线性边界控制系统的能控性问题。

This summarize is about the Controllability Development Course of Parabolic Equation .The summarize is divided into three parts .

这篇是关于抛物方程的能控性发展历程的综述，它分为三部分。

Chapter 1 introduces the controllability for parabolic equations and the main results in this paper.

第一章是本文综述部分，简要介绍了抛物型方程能控性研究的前沿现状及本文所做工作。

The task for air defense and antimissile guided missile is more and more difficult because mass precision guided munitions is used on seat of war.

由于精确制导武器在战场上的大量使用，防空反导的任务将比现在更加艰巨。

It's certainly the story of my family who once worked as domestics and now are successful entreprenuers.

这绝对是故事，我的家人，曾经担任女佣和现在都是成功entreprenuers 。