查询词典 rectangular prism

For example, alkaline elements can affect diffusion velocity of Zr, Si and O ions although these alkaline elements cannot exist in crystal structure of zircon. However, K rich media and Na rich media exert different effects on the growth of crystal form: in the K rich media, growth speed of prism faces in the vertical direction is much higher than that of pyramid faces, and {111} growth speed in the vertical direction is higher than {311},which decides the formation of bipyramids dominated by {311} pyramids; in the Na rich media, both prism and pyramid grow to a certain extent, but the former is smaller than the latter.{100} growth speed in the vertical direction is lower than {110}, while {111} growth velocity in the vertical diredtion is lower than that of {311},resulting in the growth of the crystal form characterized by {100} short prism and {111} pyramid.

例如，尽管碱性元素并不进入锆石晶格，但它们可以影响Zr、Si、O离子的扩散速度，但是富钾和富钠的介质对锆石晶形发育的影响是有差别的，表现为：在富钾的介质中，将导致柱面的法向生长速度较锥面快得多，而锥面中，｛111｝的法向生长又较｛311｝快，由此决定了形成以｛311｝锥为主的双锥状晶体；在富钠的介质中，柱面和锥面都有一定程度的发育，但前者弱于后者，而柱面中，｛100｝的法向生长较｛110｝慢，由此决定了形成以｛100｝柱和｛111｝锥为主的短柱锥状晶体。

In order to save the rare iceland and increase the transmittance of polarizing prism,a type of polarizing prism combination of iceland and glass is designed. The prism have super high transmittance of o light when the incident angle is Brewster's angle.

为了节省稀有昂贵的冰洲石晶体材料，尽量提高偏光棱镜的透射率，提出了一种采用冰洲石晶体与光学玻璃组合的方法，给出了以布儒斯特角入射来提高o光透射率的偏光棱镜设计。

Our research work of combination of iceland and glass polarizing prism is based on four points: select suitable material、 calculation、 machining and testing. Select suitable material means that select the optical glass and glue that can match with iceland suitably; The optimal design scheme of prism is determined by calculation and analysis; The samples are machined, solving the technical problems, such as the matching of material and increasing transmittance; We pay attention to the transmittance and extinction ratio of prism in experimental test.

本文对冰洲石—玻璃组合偏光棱镜的研制工作主要围绕选材、计算、加工和测试这四个要点展开：选材即选取可以与冰洲石晶体实现较好匹配的光学玻璃和胶合剂；通过计算、分析，确定最优化的棱镜设计方案；样品加工，解决该棱镜加工的技术难题，如材料匹配和提高透射比问题；实验测试主要关注棱镜的透射比和消光比。

The optical element comprises: a plurality of rectangular prisms for dividing linear visual field, and is characterized in that the effective work area of each rectangular prism is a linear narrow slit, which can perform visual field division of the light beam from a long linear geographical object and turn the divided visual field into separate light beams for the rational space arrangement of the subsequent optical elements.

光学组件包括：用于分割线型视场的多个直角棱镜，其特征在于：各直角棱镜中的有效工作区域均为一线型窄缝，可将长线型地物目标光束按需要进行视场分割，并将各分割后的视场形成空间分离的光束，以便于后续光学组件的空间合理排布。

Using the relations between Hermite and Laguerre-Gaussian modes and expanding the window function of two-dimensional rectangular hard-edged apertures into a finite sum of complex Gaussian functions, the propagation of complex- argument Laguerre-Gaussian beams through a paraxial optical ABCD system with a rectangular hard-edged aperture is studied. An analytical propagation equation is derived and used to study the diffraction at the rectangular hard-edged aperture and the focusing properties of complex-argument LG beams.

利用拉盖尔－高斯模和厄米－高斯模的变换公式，并使用将二维矩孔光阑窗口函数展开为有限个复高斯函数之和的方法，得到了复宗量拉盖尔－高斯光束通过含矩形硬边光阑近轴ABCD光学系统的变换的解析传输公式，并对复宗量LG光束通过矩形硬边光阑的衍射和聚焦特性进行了研究。

objectiveto evaluate the result of using rectangular advacement flaps for repairing the eyelid defects at the edges of palpebra.methodswe have used rectangular or double rectangular advacement flaps to repair the defects of theantieror margin of eyelid in 36 cases.to repair the posterior margin defects ,when the defects of thetarsal plates were shorter than 5mm,the tarsal plates were closed directly , longer than 5mm ,sliding tarsal palpebral conjunctive flaps were to be used.resultsin 36 cases all of the flaps were survived with primary healing, slight scar, no absence of eyelashes, no notch deformity at the edge of palpebra, no trichiasis.

目的：探讨应用矩形推进皮瓣修复睑缘眼睑缺损的效果。方法：对36例睑缘肿物切除的眼睑缺损患者，采用矩形或双矩形推进皮瓣修复眼睑前层缺损。眼睑后层睑板缺损小于5mm者，采用直接缝合法；睑板缺损大于5mm者，采用睑板睑结膜瓣移行法。结果：36例患者皮瓣全部成活，切口ⅰ期愈合，手术瘢痕轻微﹑睫毛无缺失﹑无倒睫﹑睑缘圆滑无切迹畸形。

A machine component comprising: an elongated base plate with side edges, a linear actuator assembly having two parts which can move away from and toward each other, first mounting means on said base plate, said mounting means supporting one part of said assembly, a slide plate rectangular in cross-section and having parallel straight side edges, two elongated guide members each having a rectangular slot adapted to slidingly receive the edge of the slide plate, each elongated guide member including a lowerpart and an upper part and means for securing them together, the lower part having means for attachment to the base plate, said rectangular slot having (1) a first side wall adjacent to and parallel with the base plate, said first side wall being definedby a surface of said lower part,(2) a second side wall defined by a surface of said upper part, and (3) a bottom wall defined by a surface of one of said upper and lower parts, the upper and lower parts having oblique mating surfaces such thatlongitudinal meovement of one part with respect to the other causes the parts to separate from or approach each other in a manner to change the width of said slot, and second mounting means establishing a connection between the slide plate and the other part of said assembly.

有一长条形底座与身边的边缘，一个线性驱动器装配有两个部分，可以离开，彼此之间，首批意味着在说底座、说安装方式支持之一说总成，一个矩形截面板、平行直边棱、两种细长的引导会员都有一个矩形槽适应slidingly收到边缘的细长板，每一个lowerpart引导会员包括一个上方和手段，确保他们在一起，下方附件的方式，在底座，说矩形槽有(1)第一次侧墙毗邻，平行底座，一边说：definedby墙表面说下方，(2)第二次侧墙表面的定义，并说上方(3)底壁由一个表面的上部和下部零件，说上部和下部阀部件表面的thatlongitudinal拥有斜meovement这样的一部分的原因部分可以分离或接近对方的方式来改变宽度的槽，第二次安装方式，建立连接板之间，另一部分说总成。

Based on the analysis of physics course of heat transfer, the mathematical model of single-phase flow in the rectangular narrow channel is proposed. And the boundary conditions are given to get the unique numerical result. The finite volume method is used to found the discrete scheme of equations. According to the flow of SIMPLER arithmetic, the computing program is developed and the correctness of program is validated.Then the program is used to solve the problem of flow and heat transfer in rectangular narrow channel.The stable two dimension velocity and temperature fields in rectangular narrow channel and plate fuel are obtained.

在明确窄缝流道及燃料板换热物理过程的基础上，建立了描述矩形窄缝内单相流动与换热问题的数学模型，并给出了合理的边值条件；然后利用有限容积法对方程进行离散，根据SIMPLER算法的流程编制了模型求解程序；在验证程序正确性的基础上，对矩形窄缝流动与换热问题进行了求解，得到了矩形窄缝流道和板状燃料元件内部温度场、速度场的二维分布。

The purpose of this paper is to extract the coupling matrix of generalized chebyshev filter, model the four-port rectangular junctions, multiple-stepped rectangular waveguide bend and T-septum rectangular waveguide junction by full-wave methods and design generalized chebyshev filters and diplexers. The main works are as follows: 1. Systematically research on the theory of generalized chebyshev filters The generalized chebyshev filters are based on the all-coupled model.

本文主要目的是研究广义切比雪夫滤波器拓扑结构、物理结构上可实现的耦合矩阵提取及其特性分析和基于模式匹配法全波建模四口矩形结、多阶梯矩形波导弯头、T—scptum矩形波导接头，最后，设计了一系列高性能的滤波器和双工器。

On the basis of an analysis on the characteristics of image formation of roof Abbe prism and of the structure of double Dove prism, the paper presents a reflecting image rotator consisting of mirrors.

在对立方棱镜的结构特性和阿贝棱镜的成像特性分析的基础上，提出了由反射镜组成的反射式像旋转器，并证明了该反射式像旋转器在平行光路中的像旋特性。

A small, rubber-headed hammer used in examination or diagnosis by percussion.

叩诊槌用在通过''。'振荡'。''所作的检查或诊断中的橡皮头的''。'小'。''槌

Affixes are limited in number in a language, and are generally classified into three subtypes, namely, prefix, suffix, and infix, depending on their position with reference to the root or stem of the word.

语言中词缀的数量总是有限的，根据它们跟词根或词干的相对位置，一般可以把词缀分外三小类：前缀，后缀和中缀。