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The characteristics of cutting edge and cutting advantages for a new type of ball end mill with space curve cutting edge is introduced,the calculating method of curve geometric parameters is explained,and the manufacture technology is presented.

介绍了一种新型空间曲线刃球头铣刀的刃形特征和切削优点，详细分析了其空间几何参数的计算方法，简要说明了其制造工艺。

This paper expounds a methodology which employs spectral reflectance, geometric property and texture feature of a given target synergistically under the framework of feature-level information fusion.

利用多光谱遥感影像进行地物目标识别和提取已经有20多年的研究历史，取得了一定的研究成果，但是已有的地物目标识别提取方法所用到的地物目标的特征信息还比较单一，因此地物目标的识别率和提取效果还不够理想。

Spherical grinding error analysis is mainly about influence of geometric precision of machine on precision of graund parts, the influences of vertical, horizontal and angle on the spherical degree errors were researched respectively, and the specific calculation formulas were deduced.

主要针对机床几何精度对磨削球面精度的影响，分别从上下、左右、角度三个方面对球面度误差的影响展开了研究，得出了具体的计算公式。

Finally, based on the geometric model and arithmetic for the coordinates of spherical circular hole series, this paper demonstrates how to convert the planar measuring and calculating results to three-dimensional measuring results, and exhaustive experiment results validate the precision this measurement could achieve.

最后建立了球面孔系坐标的几何模型及算法，实现二维测量到三维测量的转换，并以详尽的实验结果对本测量系统所能达到的精度进行验证。

In addition, the common high school mathematicalcurriculum standard regards spherical geometry as special subject 3 ofthe third optional series, which is set up to further improve the qualityof math students whoa re interested in mathematics and geometry withthe purpose of cultivating students imagination and geometric spaceabilities.

普通高中数学课程标准将球面上的几何作为普通高中选修系列3的专题3。

In this paper, through an imaging system , the planar image of the inner sur- face of a pipe is obtained, and the judging creteria of analogy between object and image is given. Then, the geometric shapes of images of planar mirror ,conemirror ,off- axis spherical mirror are analysed in detail .

对管道内表面，通过成像系统在乎面上成像，给出其物像之间几何形状相似的判定标准，并对平面反射镜、圆锥反射镜和离轴球面反射镜在平面上成像的几何形状进行了详细的分析。

Spherical concepts clear, public shell plates of geometric design.

球面概念明确，公球壳板的几何设计方法。

The procedures used mathmatics establishment, used to complete the spiral bevel gear surface and quasi-two-tooth surface of the geometric design.

该程序用mathmatics编制，用来完成弧齿锥齿面和准双曲面齿面的几何设计。

The accurate measurement of the structure parameters of real tooth surface of spiral bevel gear with the coordinate measuring machine is the key to evaluate the geometric quality of the real tooth surface quantificationally, and the base of machine-settings correction.

在三坐标测量机上精确测量螺旋锥齿轮真实齿面的结构参数是定量评价其齿面几何质量的关键，是齿轮加工机床参数修正的基础。

According to Shilnikov Theorem, on the condition that satisfies the basic characteristics of heteroclinic orbit, Shilnikov inequality and the eigenvalue equation, by finding a heteroclinic orbit consist of three geometric invariant sets, namely unstable manifold, heteroclinic point, and stable manifold, a set of real parameters accordance with the condition of existing heteroclnic orbit is obtained in this chaotic system.

根据Shilnikov定理，在满足异宿轨道基本特性、Shilnikov不等式和特征方程条件下，通过寻找该系统中一条由不稳定流形、异宿点和稳定流形三个几何不变集构成的异宿轨道，在分段Sprott系统中导出了存在异宿轨道时该系统中各个参数应符合的条件，并找到了一组对应的实参数，由此证明了异宿轨道的存在性。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。