查询词典 refraction angle

The mean age was 26.9 years ( range, 18 to 47 years); Mean spherical refraction was -(5.89±3.34) diopters (range,-1.50 to -15.0 diopters).

结果被检查者男性213人，女性287人；年龄18~47岁（平均26.9岁）；屈光度-1.50~-15.0D(5.89±3.34D)；散光度-0.25~-5.0D-0.71±0.54D。

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

The first one is caused by electromagnetic wave refraction phenomena at air-soilinterface and the second one is caused by spherical wave propagation loss andtransmission loss.

前者主要是由于电磁波在媒质表面产生的折射效应造成的，后者主要是电磁波在传播过程中的衰减造成的，包括球面波传播损耗、媒质表面的反射损耗和有耗媒质媒质对电磁波的衰减效应。

The integration of principles of psychology field:"Situation - teachers - students" to promote among the benign form of multi-refraction of the psychological field, to make children and can not help but use "splenetic" to learning, teaching can enter into a boiling state.

心理场整合原理："情境——教师——学生"三者之间形成的良性推进的多向折射的心理场，促使儿童情不自禁地用"心眼"去学习，教学便可进入一种沸腾的状态。

The result shows that the theory about stationary wave can be used to properly explain the relationship between the spectral structure and the thickness of the dielectric material,the index of refraction of the dielectric and metallic materials composed photonic crystal.

结果表明介质材料的厚度、折射率以及金属材料折射率的虚部对光子晶体光谱的影响可以采用驻波理论较好解释。

Based on rate equations, by use of a new method, a semiconductor optical amplifier theoretical model is constructed taking carrier density pulsation, spectral hole burning, stimulated emission, free carrier absorption, two-photon absorption and ultrafast nonlinear refraction effects into account.

基于速率方程采用新的推导方法得到了可以用来讨论飞秒量级光脉冲传输特性的半导体光放大器理论模型，该模型同时考虑载流子浓度脉动、光谱烧孔、受激辐射、自由载流子吸收、双光子吸收和超快非线性折射效应。

Objective To study the effect of horizontal strabismus diorthosis on refraction as well as possible factors that may cause influence.

目的 探讨水平斜视矫正术对眼屈光的影响及产生影响的可能因素。

Refraction: The change of direction of a light ray or energy wave from a straight line as it passes obliquely from one medium to another in which its velocity is different.

折射：当光线或能量波倾斜着穿过一种媒介到另一种媒介时，由于光线在两种媒介中的传播速度不同，导致其传播方向发生偏转。

By the utilization of the symmetric characteristic of the tensor,algebra relation between the elements in the tensor and refraction index ellipsoid equation,an approach base on Attenuated-total-reflection technology was proposed for the measurement of the QEO coefficient of the organic polymer.

利用该张量的对称特性、各个元素之间的已知关系以及折射率椭球公式，本文提出了一种基于衰减全反射技术的测量有机聚合物二次电光系数的方法。

By the utilization of the symmetric characteristic of the tensor, algebra relation between the elements in the tensor and refraction index ellipsoid equation, an approach base on Attenuated-total-reflection technology was proposed for the measurement of the QEO coefficient of the organic polymer.

有机聚合物材料的二次电光系数是衡量其二次电光效应的一个重要参数，其可以用一个6×6阶的张量来表示。利用该张量的对称特性、各个元素之间的已知关系以及折射率椭球公式，本文提出了一种基于衰减全反射技术的测量有机聚合物二次电光系数的方法。

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。