查询词典 grin

Firstly, based on the basic theory of GRIN optics the optical effects of the spherical symmetry GRIN micro-sphere lens were analyzed systematically. Firstly, based on the basic theory of GRIN optics the optical effects of the spherical symmetry GRIN micro-sphere lens were analyzed systematically.

本工作从梯度折射率介质光学的基本理论出发，对球对称GRIN微球透镜的光学性能进行了系统的分析；研究了用球对称GRIN微球制作回归反射材料的可能；进而选择两种聚合物单体，采用悬浮扩散共聚法，研究制备了较大粒径的聚合物梯度折射率微球透镜。

I didn't know that cheshire cats always grin ned; in fact, I didn't know that cats COULD grin .

"我还不知道柴郡猫经常笑，实际上，我压根儿不知道猫会笑的。"

When propagating light\|ray passes through two fixed points in the gradient index mediums and a cuspidal variable\|point （at this point the trace equation of propagating light\|ray is non\|differentiable） at the borderline of two different GRIN mediums, the mathematical relationship, which the trace equation of propagating light\|ray and borderline equation of two different GRIN mediums should satisfy, is derived by the Fermat's principle and calculus of variation.

当光线通过梯度折射率介质中两个固定点和两个GRIN介质界线上的可动尖点（光线轨迹方程的不可微点）时，由费马原理和变分法运算推得传输光线的轨迹方程与两种不同GRIN介质的界线方程应满足的微分关系式。

From the basic theory of spherical symmetry GRIN medium, we bring out a new method on calculating the GRIN distributiing function., then several examples are given on the method.

第四章：由一种新的光线轨迹提出一种新的梯度折射率分布，并研究了具有这种分布的介质的光学性质，其中重点是其对表面漫射材料性能的改善。

It has great potentialities in such fields as micro-optics, integrated optics and optics communication.Firstly, based on the basic theory of GRIN optics the optical effects of the spherical symmetry GRIN micro-sphere lens were analyzed systematically.

本工作从梯度折射率介质光学的基本理论出发对球对称GRIN微球透镜的光学性能进行了系统分析；选择两种适当单体，采用悬浮扩散共聚法制备出聚合物梯度折射率微球透镜；测量所得透镜的折射率分布曲线和其他光学参数。

Chapter 2: Expatiate on the basic theory of the GRIN micro-sphere-lens, especially on the classical model—MAXWELL fisheye lens, which demonstrates their excellent optical properties.Chapter 3: Simply introduced the concept of retro-reflection, retro-reflection materials, the fabrication of traditional glass sphere and the possibility of the application of GRIN polymer micro-sphere on retro-reflection.

第三章：介绍了回归反射的概念、回归反射材料的现状；研究了用麦克斯韦鱼眼微球制作回归反射材料的可能，并与传统的均匀折射率玻璃微球回归反射材料的性能作了比较，得出将麦克斯韦鱼眼微球用作回归反射材料不仅可以大幅度降低原先对材料折射率的过高要求，还可明显提高回归反射的效率的结论。

This is completely contrary to the admonishment about women regulated by our traditional culture that women must grin and bear all sufferings, abide by the law and behave themselves.

这同传统文化对女性逆来顺受、安分守己的训诫截然相反，彻底颠覆了男权社会给"女性欲望"定义的不洁之名。

Out front, families are ankle-deep in bivalves, shovelling them into soybean sacks and stacking these in piles. The haul, says a woman with a grin, is on its way to the tables of Beijing.

在屋前，家庭成员们正在没膝的牡蛎堆里把牡蛎装到袋子里并堆放好，一位妇女笑着说，这些袋子里的东西要送到北京的餐桌上。

I will never forget her grin, one of the biggest and most beaming ones that I have even seen!

一年后，她在考试中第一次取得了90分，我永远不会忘记她灿烂的笑容，是我见过的最美丽的笑容。

There he stood before me, all five-foot-nine of him, with that silly grin and outstretched arms, ready for a bear hug.

五尺九高的他又站在我面前，张开双臂傻傻的笑着等着给我一个熊抱。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？