查询词典 Lens

Celiac lens gallbladder is excised is to be in lens of TV abdominal cavity is orthoptic below, use special weapon or enter through celiac wall small cut cystic resection applies inside abdominal cavity, do not have a stomach, scar is little, anguish is small, complication is little, operation time is short, restore to wait for an advantage quickly, now already by clinical and wide application.

梗概： 腹腔镜胆囊切除是在电视腹腔镜直视下，利用非凡器械或通过腹壁小切口进入腹腔内施行胆囊切除术，具有不开腹，创伤小，痛苦小，并发症少，手术时间短，恢复快等优点，现已被临床广泛应用。

A tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam.

一端包含一个凸起的消色差透镜另一端在镜头的中心有一个小切口的小管；光线通过小切口成为平行光线。

The sagittal depth ," S ",(also called sagitta , sagittal height or sag)is the perpendicular distance between the geometric center of the back lens surface and the diameter of the lens.

12矢深，" S "，，指镜片内曲面的几何学中心至线状直径之间的垂直距离。

The small hole of the optical inducer of the traditional second-generation optical mouse used for receiving the images faces downwards, and corresponding light sources (including photoelectric diode and laser diode), optic lens and photosensitive holes are arranged at the lower part of the mouse; therefore, moving the whole mouse is a relatively convenient method for generating displacement of the mouse pointer; oppositely, the small hole of the optical inducer used for receiving the images faces upwards and corresponding light sources, optical lens and photosensitive holes (7) are arranged at the upper part of the mouse; matters on the upper surface of the photosensitive hole (7) can be moved so as to lead the mouse pointer to generate the displacement, while the moving signal transmitted by a photoelectric conversion device must be reset so as to comply with the integrated mouse of the invention.

传统的第二代光电鼠标的光学感应器接收图象的小孔是向下的，对应的光源(包括光电二极管，激光二极管)、光学透镜和感光孔都是在鼠标下部分，这样要想鼠标指针产生位移较方便的方法就是移动整个鼠标；相反，光学感应器接受图象的小孔向上，对应的光源、光学透镜和感光孔(7)在鼠标上部分，要使鼠标指针产生位移就只需移动附在感光孔(7)上面的物质，但必须重新设置光电转换装置传出的移动信号，以符合本发明。

In the third chapter "Utterly exhausted", analysed expressly those long-lens and jump-cut; In the fourthly chapter "alpha city",analysed expressly the aesthetic purpose of black and white and simulacrum; In the fifthly chapter "Chinese girl",put emphases on the color and component line;In the sixth chapter "madman Pierrot",analysed expressly color and dissymmetry composition of a picture through psychology; In the seventh chapter "carbinier",analysed lens language from film semeiology; it researched Chinese film in eighth chapter,explained detailedly a successful Chinese films;"Yellow land",analysed presentation format of The sign "China".point out our Chinese film various problems in inditing concept as well as film system.

第八章是对中国电影的研究，提出戈达尔对我们中国电影一些有益的启示，分析了一部成功的中国影片《黄土地》，从电影符号学的角度去分析"中国"这个符号的呈现方式。还指出了中国电影目前存在的一些问题，有电影创作观念上以及中国电影体制等方面的原因。

An optical element such as a rear projection screen for an image display device comprises at least two substantially rigid sheet members each having a first major surface and a second major surface providing a plane of incidence and a plane of emergence, respectively, through which light is transmitted sequentially. A first sheet member comprises a Fresnel lens, and a second sheet member comprises a lenticular lens array on each of the major surfaces thereof.

一种光学元件，例如用于图象显示装置的背投式屏幕（1），包括至少两个基本为刚性各具第一主表面（21；31）和第二主表面（22，32）的板部件（2；3），分别提供顺序穿过光线（10）的入射面和出射面，第一板部件（2）和第二板部件（3）在其各个主表面（31，32）上分别包含一个菲涅耳透镜（24）和一个双凸透镜阵列33，35。

As far as I know there are three kinds fo such tests commonly exist - the Dall Null test which uses a single plano-convex lens, an auto-collimating test uses a flat as big as the mirror under test and Offner test using two plano convex lens.

据我所知现时一般存有3种此类测试，其一是达耳零位测试采用单一只平凸透镜，再有是自准直测试采用一块平镜大小一如被测试的反射镜，及 Offner 测试采用2只平凸透镜。

The latest experimental results of the focusing perfermance of the compound high-energy X-ray lens is designed with PMMA with the parameters of 40 plano-concave elementary lenses positioned in line with axial symmetry, 200 μm radius of the concave surface, 0.15 nm working wavelength, 0.5 mm geometrical aperture and 8 mm length of the compound lens and 1.3 m focus length, are briefly introduced.

报道了这种新型X射线光学元件聚焦性能的最新实验结果。设计的高能X射线组合透镜为聚甲基丙烯酸甲酯材料，包括40个相同的、顺序排布的平凹折射单元，折射单元的球面半径为200 μm，组合透镜的几何口径约为500 μm，长度约为8 mm，焦距约为1.3 m。简要描述了PMMA材料X射线组合透镜的制作技术和制作过程。并给出了X射线组合透镜聚焦性能测试实验系统和实验条件。

In addition to measure the refractive index profile of a GRIN lens, we also measure the refractive profile and radius curvature of a Plano-convex lens by means of this imaging ellipsometric technique.

本文将此简式影像式椭圆偏光术应用在非均匀平面材料光学参数之量测，及平凸透镜之量测；我们不但量出了渐变式光纤折射率的径向分布并证明其表面的平整度，另外也量出平凸透镜的曲率半径及折射率。此法可将椭圆偏光术延伸到曲面薄膜量测。

The housing includes two lens sections (56, 57), which each have a platelike support portion (106), and several lens portions (111-118) of approximately semi-spherical shape that project from the inner side of the support portion.

该外壳包括两个透镜部件(56，57)，每个透镜部件具有一平板状支撑部分(106)，和数个近似为半球形且从该支撑部分的内侧凸出的透镜部分(111-118)。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了