查询词典 lens

Methods On the symmetrical plane of the double-Gauss lens with 1:1 magnification,the Fraunhofer diffraction of the object surface could be formed.

方法在双高斯1：1制版镜头的对称面上形成物面的夫朗和费衍射，并使物面与茶形散斑屏重合，使得各物点均以狭缝状的光束通过透镜组在记录介质面成像。

From Ken Rockwell, the free lance photographer and blogger, advices and tips on how to be able to afford things like luxury SLRs and Lens.

Ken Rockwell是一个自由摄影师和博客写手，主要靠摄影作品和他的博客(有一些购买摄影器材的推荐链接)为生。

A case of free-living Amoebae keratitis in a non contact lens wearer［J］.

环形浸润在棘阿米巴角膜炎诊断与治疗中的临床价值［J］。

The artery in the edge of lens capsule equator department started atresia and vanishing at the 30th week, and vanishing complete at the end of the 32nd week in some specimens. Up to the 33rd week, two group artery of different origin were complete atresia and vanishing, were remaining the transparent vitreous body frenum.

胎儿自第30周始，部分标本在晶体囊赤道部边缘的动脉已开始闭锁消失，第32周以后完全消失，至第33周两组不同来源的动脉已全部闭锁消失，残留着透明的玻璃体系带。

Based on the Fresnel diffraction integral and the complex Gaussian expansion for the hard-edge aperture function, a simple and analytical expression for calculating the diffraction field distribution of an apertured lens is presented.

基于菲涅尔衍射积分和将硬边孔径函数展开成有限项复高斯级数方法推导出了计算透镜衍射光强分布的解析表达式。

Staring from Fresnel diffraction integral,we deduced the optical intensity distribution in the Fresnel zone of the diffraction field of the annular-aperture lens axicon.

从菲涅耳衍射积分公式出发，推导多色高斯光束被球差透镜衍射后光强分布的解析公式，进行数值模拟和物理分析。

The results of computer simulation can provide theoretical basis for the fabrication of Fresnel lens.

模拟计算结果对多阶菲涅耳透镜的制作提供重要的理论指导。

A method of making the Fresnel lens is described.

本文还描述了制造菲涅耳透镜的方法。

Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.

使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。

Influence of phase errors upon the diffraction efficiency of the phase fresnel lens［J］.

位相误差对菲涅耳透镜衍射效率的影响［J］。

Bursts of yellow punctuate a cactus in Manzanillo, Mexico.

在墨西哥的地方，有一种仙人掌，像暴烈开的黄色圆形标点符号那样生长。

Maybe your Aunt Maud wasn't too sure of the size.

也许你Maud姑婆不太确定你的尺码。