球面

Then interpolating cubature formulae is given based on Lagrange interpolation formulae. Secondly it make use of the cubature formula on the triangle to construct cubature formulae on the correspondent spherical triangle.

通过把其定义域上的积分化为平面单纯形{u =(u1， u2， u3)： u1 + u2 + u3 = 1， u1， u2， u3〉0}上的积分，然后利用平面单纯形上数值积分公式给出其在球面三角形上的对d次齐次多项式精确成立的Gauss求积公式的构造方法。

Submanifold; Homology group; Topological sphere theorem; L~2 harmonic 1-forms; Ends; Eigenvalue; Mean curvature; Second fundamental form

基础科学，数学，几何、拓扑子流形；同调群；拓扑球面定理； L~2调和1-形式；端；特征值；平均曲率；第二基本形式

Lenses are curved pieces of glass or plastic.

3球面透镜是表面弯曲的玻璃片或树脂片。

The result of this paper can be applied to simulate cutting operation using plane and sphere knife in coxae orthopedics.

研究背景是髋关节整型手术中平面手术刀及球面手术刀对髋关节的切

And the coupling efficiencies of the cylindrical mirror and the spherical mirror are studied and compared with diffraction theory.

应用衍射理论详细推导了柱面反射镜和球面反射镜对方形波导激光器的耦合效率。

In the same way, the couple efficiencies of EH11, EH21 and EH12 modes are calculated when the cylindrical mirror is used.

通过对比，得到波导口到反射镜距离d较小的时候，柱面反射镜对EH11模具有与球面反射镜接近的耦合效率。

Our company relates to optics wafer treating right away starting from the 80's, In the field of wafer treating have accumulated large amount of the special field experience developing、giving birth to a child and managing. Grasp the various optics wafer Flat surface、Spherical surface、Cylindrical surface complete set processing technology.

本公司自八十年代初就开始涉及光学晶片加工，在晶片加工方面积累了大量开发、生产及管理的专业经验，掌握各种光学晶片平面、球面、柱面的全套加工技术。

Based on simulation results, the field characteristics of some kinds of non-axisymmetric focusing surfaces, including cylindrical surface and ellipsoidal surface, are analyzed.

以声场模拟为基础，分析了包括柱面聚焦和扁椭球面聚焦等在内的几类非轴对称聚焦曲面声场特性。

Moreover,we discuss the local and global controllability and observability of the nonlinear system on the sphere, the cylindroid and the cone.

进一步，讨论了建立在球面、柱面和锥面上的非线性控制系统的局部和整体能控性与能观测性。

Secondly, we show the intimate relation between the nonlinear control system and the special geometrical strucure and singular structure of a sphere, a cylindroid and a cone.

刻划了球面、柱面、锥面的特殊曲面几何结构和奇异结构与非线性控制系统之间的内在联系。

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