球面

We consider Grassmann manifold G(2,8) as a submanifold of the unit sphere of /\2 which is the exterior vector space on Rn. Thus we have the induced metric and connection on G(2, n).

把Grassmann流形G（2，n）看作等距地嵌入在欧氏空间R~n上2-外向量空间∧~2中的单位球面上的子流形，得到它上面的度量和联络。

The method can be used to get fine metrical precision of spherical surface.

从而实现了高精度检测球面面形。

Luoyang City of the Century Bearing Co., Ltd. was established in 1992, is located in the ancient capital of nine - Luoyang, is engaged in various kinds of large, large, non-standard, the special structure of the professional bearing manufacturer, the company cylindrical roller bearings, deep Groove ball bearings, angular contact ball bearings, wheel bearings, mill bearings, precision machinery bearings for leading products, but also production-aligning roller bearings, needle roller bearings, spherical bearings, bearings, and other products, and production based on user needs Various types of non-standard bearings.

洛阳市金世纪轴承有限公司成立于1992年，地处九朝古都——洛阳，是从事各类大型、特大型、非标准、特殊结构等轴承的专业生产厂家，公司以圆柱滚子轴承、深沟球轴承、角接触球轴承、转盘轴承、轧机轴承、精密机械轴承为主导产品，还可生产调心滚子轴承、滚针轴承、外球面轴承等各类轴承产品，并可根据用户需要生产各类非标准轴承。

The invention relates to a microlens configuration having a substantially circular form is constituted of a part of one circle or aspheric curve at any section when a section is taken at a face which is vertical to a major axis or a minor axis of the microlens configuration.

本发明涉及一种具有基本上环形的微型透镜结构，当在垂直于所述微型透镜结构的长轴或短轴的任何一个面取截面时，该结构由在任何截面的圆形的一部分和非球面曲线构成。

In order to measure scattering rate and judge optical properties of a laser mirror film,a setup with a photoelectric systen and a spherical mirror as a convergence element is developed.It is used to measure the film scattering in a relative measure method.

为了测量激光反射镜薄膜的散射率，评定激光反射镜薄膜的光学性能，研制一种以球面反射镜为聚光元件和利用光电接收转换系统通过相对测量方法测量薄膜散射的装置。

A model eye with aspherical cornea and nature lens are used to be calculated by raytracing method.

引入了由非球面角膜和晶状体组成的模型眼，采用ZEMAX软件进行光线追迹，为无晶状体眼的人工晶状体的设计提供理论依据。

Optical design of a novel spherical grating monochromator is described, which is used in testing the soft X ray spectra of a low debris laser produced plasma.

提出了一种用于低碎屑激光等离子体软X射线光谱测试的球面光栅单色仪的光学设计方案。

According to monotone assembly sequence planning, a decomposition process is developed to generate the assembly sequences. We infer the disassembly direction set of part by use of sphere projection and Cobstacle etc.

在建立的装配模型基础上，先通过对装配模型中零件间的装配关系做矢量分析，应用球面投影处理、投影法和C-空间障碍可以得到各零件在产品中的拆卸方向域信息。

I watched Mike Mussina and Chien-Ming Wang face Johnny Damon, Derek Jeter, Bobby Abreu and Jesus Montero.

我看了穆帅及小王的球面对戴蒙、D.J、阿布瑞尤和Jesus Montero打击时的投球。

The propagation of spherical electromagnetic wave in a time-varying media of multidimensional space were studied.

研究了球面电磁波在多维空间时变媒质中的传播特性。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。