查询词典 refraction

Further, the difference of negative refraction associated with uniaxial crystal and with negative index media is discussed.

同时还发现单轴晶体中的能流负折射现象不能实现Pendry在理论上所预言的完美透镜。

In this model, a parameterized method has been employed to decrease or eliminate vertical deflection and vertical refraction errors.4 For the long baselines of Crustal Movement Observation Network of China, using the GPS satellites orbits and stations positioning analysis software GAMIT opened up by MIT to do the single day GPS observation data processing, a synthetic solution model, which is called "the synthetic solution model of baseline vectors", has been built up with several single day baseline vectors calculated by the GAMIT software, to compute the three dimension movement velocities of sites.

对于长基线的GPS地壳变形监测网，采用MIT开发研制的精密GPS定轨定位软件GAMIT进行单天GPS观测数据的处理，提出了利用多期单天的GAMIT解算出的基线向量进行综合解算的模型："基线向量综合解算模型"，用以计算地壳监测站点的漂移速度，并通过实例验证了该计算模型的正确性和可靠性。

In order to ensure refraction screen of the appearing of photographic film uniform, paying for low-voltage water gun.

为了保证折光网版感光膜均匀，显影时需用低压水枪冲洗。

May be a reflection, refraction, diffraction, or any other type of wavefront.

可能是反射波，折射波，绕射波，或其它类型的波阵面。

Simulation on the wedge-shaped sample demonstrates that negative refraction can occur in the quasicrystal structure.

对劈形准晶样品的研究表明，电磁波在该准晶结构中发生了负折射现象。

The difference between the observation atmospheric refraction and Pulkovo table is about 15 arc second at the zenith distance of 84 degree.

在天顶距84°时，与普尔科沃大气折射表的差值约为15。

The method does not depend on strict local parameters and precise instruments, while the observational principle is relatively simple. An experimental observation was carried out with a simple telescope with large field of view at Xinglong station of NAOC at the end of 2007. The atmospheric refraction from the zenith distance of 44.8 degree to 87.5 degree is gotten by the differential method, which proves the feasibility of the method tentatively.

该方法不依赖于严格的地方参数和复杂精密的观测仪器，并且观测原理相对简单。2007年底，利用一台简易的大视场望远镜在兴隆观测站进行了试验观测，根据较差方法实测得到真天顶距44.8°至87.5°的大气折射值，初步证明了大气折射较差测量方法的可行性。

Aberrometer measurement, autorefraction and subjective refraction with a phoropter were performed.

目的 评估像差仪检测结果在主观验光中的作用。

On the basis of analysising the optical characteristic of axisymmetrical field, this paper shows a new way to calculate the distribution of refraction index axisymmetrical field.

本文分析了轴对称场的光学特性，在此基础上，给出了一种计算轴对称场中折射率分布的新的再现方

The optical nonlinearities, including the nonlinear absorption, the nonlinear refraction and the third-order nonlinear polarizability of 2-(2′-hydroxyphenyl)benzothiazole in cyclohexane, have been investigated using a single-beam Z-scan technique.

以532 nm皮秒脉冲作泵浦光，采用单光束Z-扫描技术对具有激发态分子内质子转移效应的有机分子2-(2′-羟基苯基)苯并噻唑在其双光子吸收区的非线性光学特性进行了详细地研究。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。