球面

The DEM in the new geodetic coordinate system on the ellipsoidal surface is different from the DEM in the projection plane.

基于此种坐标系在椭球面上建立DEM不同于基于地图投影概念的DEM。

This digital terrain model based on the ellipsoidal surface is essentially different from DTM based on projected plane because the Delaunay triangulation net is built based on geodesic coordinate system on regional ellipsoidal surface .

在椭球面上构建Delaunay三角网，与在平面上构网有不完全相同的定义与算法。

We suggest that instead of the general α0.5-V curve the α0-V curve be used to determine the fiber parameters, where α0, and α0.5 are respectively the angles corresponding to the first minimum and the main lobe half power point of the radiation pattern.

此外，还研究了平面检测器探测球面波束以及用"两点法"测量角宽等问题。实验中，建立了两套测量系统，在O.63μm与1.32μm波长处，测量了单模光纤参数，给出了实验结果，并与其它方法的测量结果作了比对。

Side of the cosine formula to take spherical triangle ABC, will be the vertex with the hot core ° links, available on three sides of a hot core ...

边的余弦公式取球面三角形 ABC，将各顶点与球心°连结，可得一球心三面。。。

Spherical sine law and cosine law can be used out of high school knowledge and evidence, but evidence ...

球面正弦定律和余弦定律可用高中知识证出，不过证。。。

Then,the cosine value of central angle between the spacecraft and the descending node is solved by using cosine theorem of spherical geometry to avoid the cumbersome solving process by judging the flight direction of a satellite and the latitude of sub-satellite point in an original calculation model of image motion speeds.

通过球面几何的余弦定理直接求解航天器与降交点相对地心夹角的余弦值，避开了原像移速度计算模型中通过判断卫星飞行方向和星下点纬度来求解航天器与降交点相对地心夹角余弦值这一过程。

Product lines included GB,JIS, ANSI, BSNF or any stunned spring lock washer, cotter pin, spring straight pins, etc. The Factory also developed wave, butterfly, spherical, double and other rcrics of lock washer, HELI-coll and other spring parts.

本企业生产中国、日本、美国、法国、英国等系列的弹垫、开口销、弹性圆柱销、平键、半圆键，成功开发了波形、蝶形、球面、双层等一系列弹簧垫圈，螺纹套及其他弹性件产品，现已运用在各个领域。

This paper starts from the rules of Coulomb's law, Ampere's power Law and the D'Alembert equation, hai Muhuo equation and so on, reveals the mechanical essence and divergent characteristic of electromagnetic interaction; it follows the rule shown in d'Alembert equation and transmits in the form of electromagnetic waves and spherical waves in electromagnetic field.

文章从库仑定律、安培力定律和达朗贝尔方程、亥姆霍次方程等规律出发，揭示了电磁相互作用的力学实质和发散特性；它遵循达朗贝尔方程所示的规律，以电磁波的形式和球面波的方式在电磁场中传递。

The standing wave representation of the same formula is shown to be covariant and physical.

证明了球面波的驻波表示是协变的，因而是一个物理的关系式，故适用于圆柱坐标中各类波动方程的定解问题。

It provided a correct and reasonable mathematical model for the analysis of the ultimate bearing capacity and crankle stability of the thin-walled structure.

论文在比较了两种运动描述方法（完全拉格朗日法和更新拉格朗日法）异同点并分析了非线性几何关系及大变形下的弹性物理关系的基础上，基于增量虚功原理推导了几何非线性空间梁元单元切线刚度矩阵，采取分模块形式，分别表示了轴力、弯矩、双力矩对几何矩阵的贡献；通过球面显式荷载增量迭代式弧长法求解方法编制程序，很好地实现了几何非线性增量荷载的自动步长选择及全过程跟踪，为薄壁杆系结构的极限承载力分析和弯扭失稳分析，提供了较为精确合理的分析力学模型。

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