1.As the result of rotation the complicated spatial curved surfaces are formed which are the cylindrical, conic and spherical surfaces.
指出使用旋转积的概念可用于表达矢量的旋转，旋转的结果是可以形成柱面、锥面、球面等复杂的空间回转曲面。
2.Pascal's Theorem : The points of intersection of the pairs of opposite sides of a hexagon inscribed in a conic are collinear .
帕司卡定理：给定一个圆上的六边形，则此六边形三对对边直线的交点在同一直线上。
3.When the rotary speed rises, the temperature drop of the distributor entrance and exit will increase in the form of conic.
分配器转速提高，分配器进出口的温降以二次曲线的形式上升；
4.medium-sized larch of northeastern Russia and Siberia having narrowly conic crown and soft narrow bright-green leaves; used in cultivation.
俄国东北和西伯利亚一带的中型落叶松，圆锥形树冠，柔软并且狭窄的亮绿色树叶；园林树木。
5.In this paper, two theorems on chord at contact equation of a nonsingular conic have been proved.
证明了非退化二次曲线切点弦方程的两个定理。
6.source is the Geometer's Sketchpad to do mathematics courseware, documents for the conic common for high school math teachers to use.
本源程序是用几何画板做的数学课件，文件为圆锥曲线共性，供高中数学教师使用。
7.They are commonly used in map projections, polar projection, Mercator's projection Lambert conformal conic projection are three of them.
导出在极射赤面投影、卡托圆柱投影和兰勃脱正形圆锥投影等算法中确定位置坐标的精确公式。
8.marquetry . The most interesting piece is the surprising central living room crowned by a parabolic dome surpassing the roof in conic form.
最有趣的作品，是不足为奇的中央客厅加冕由一个抛物线圆顶超过屋顶在圆锥曲线的形式。
9.A conic primitive based intermediate pattern and its data format of electron beam lithography are defined.
在一种新的电子束曝光机二次曲线单元图的基础上定义了一种中间图形数据格式。
10.Compared with classical group signature, the conic analog over Zn has strongly improved the security of computing discrete logarithm.
与经典群签名方案相比较，离散对数问题更加困难，有效提高了方案的安全性；