球面

There were many studies on the static properties of common types of reticulated shells, such as sphere, cylinder, elliptic paraboloid, hyperbolic paraboloid and so on, while little systematical research on ellipsoid reticulated shells has been reported by now.

摘要对于比较常见的网壳结构形式，如球壳、圆柱面网壳、椭圆抛物面网壳、双曲抛物面网壳等，其静力性能的研究已比较成熟，有关其非线性全过程分析的策略、思想及实施方法，很多学者均进行了深入的分析和探讨，但对椭球面网壳这一结构形式来说，目前还没有系统的研究。

A new high spectral resolution crystal spectrometer is designed to measure very low emissive X-ray spectra of laser-produced plasma in nm range.

为诊断波长为0.5～0.9 nm的激光等离子体X射线光谱，研制了一种高分辨的球面弯晶谱仪。

The corneal suface of children with emmetropia has toric shape. There is a fine coincidence between two methods in central corneal power. The corneal surface of children with emmetropia has the feature of irregularity and non-spherical surface.

儿童正视眼角膜表面呈托力克光学面；角膜曲率计与角膜地形图仪对于中央区角膜曲率测量有很好的一致性；儿童正视眼角膜表面具有一定的不规则性(CIM约0.63)和非球面特性(SF约为0.27)。

Thus, Galileo enchantingly guides the reader to understand why the appearance of isolated bright spots among otherwise dark areas implied a rough topography where previous investigators saw only a mottled coloration of an otherwise smooth sphere.

因而，伽利略以引人入胜的方式引导读者理解，出现在暗区内的孤立亮点，为什麼暗示有崎岖的地形，而先前的研究者认为那只是光滑球面上的一个杂色斑点。

A three-dimensional surface, all points of which are equidistant from a fixed point.

球面一个三维空间表面上所有点都与该空间的中心点距离相等

Secondly the structure error equation was analyzed by using the numerical interpolation approach and giving the initial solution of the optimization model.

利用球面四杆机构函数综合的封闭形式解，通过引入比例系数，推导了结构偏差的方程式，并构造了精确点选择的优化数学模型。

The non-commutativity of two gen-erators in an algebra or a group can usually lead to a certain geometrical phase.whose magnitude is generally an area of a circuit(e.g.a triangle)in a certain space.such as the spherical surface or the Euclidean plane.

通常一个群或且一个代数中两个生成元的不对易性会导致某种几何相位。这种相位可能对应于球面或且欧几里德平面几何中某个闭合回路的面积。

Before hyperbolic geometry, mathematicians knew about two kinds of space, Euclidean space and spherical space. And they have different properties.

在有双曲几何前，数学家知道有两种空间－欧几里德空间和球面空间；它们具有不同的性质。

During the panorama generation,this paper gives an algorithm to construct a spherical panoramic image automatically based on obtaining the perfect parameters of mosaic,which has the characteristics of expeditiousness ...

在全景图的生成中，提出了一种基于拼合参数自动寻优的球面全景图生成方法。该方法具有拼合速度快、拼合效果好的特点。

Fast lenses of this optical design shift the focus due to spherical aberration when the f-stop is changed.

采用这种设计的大光圈镜头，在使用不同的f值时，球面相差也不同，导致焦点变化。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐