查询词典 conic polar

The results show that the section of conic is superior to that of cylindrical on filtration characteristic;the ceramic particle diameter of 20 micrometer or so is suitable for the filter media used for th...

结果表明：锥状截面陶瓷过滤元件从过滤特性上讲更优越；对整体煤气化联合循环陶瓷过滤元件的过滤介质来说，陶瓷颗粒直径为2 0 μm左右时是适合的。

Through the process of learning different kinds of theorems, solving various geometry problems involving using those theorems, as well as combining the usage of plane geometry methods with analytic geometry, especially with conic section, we gained our own unique understanding and strong interest of plane geometry.

通过对平面几何各种定理的了解、证明，结合高中数学联赛具体题目中各种定理、推论的应用，以及平面几何与解析结合在圆锥曲线问题中的实际结合，我们对平面几何有了自己独特的见解和浓厚的兴趣。

Given a hexagon circumscribed on a conic section , the lines joining opposite polygon vertices meet in a single point

已知一个六边形外切于一条圆锥曲线，那么连接这个六边形相对顶点的三条线交于一点。

Mathematics The ratio of the distance of any point on a conic section from a focus to its distance from the corresponding directrix.

离心率：二次曲线上任何一点到焦点的距离与到准线的距离之比对任一特定二次曲线来说，这个比值都是一个常数

Geometry a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis

eccentricity：释义 eccentricity 离心率椭圆的离心率即是指椭圆上点到焦点的距离与到准线的距离的比值。

Because it emphasizes on algebraic method, geometric intuition are lose. Especially in the unit of conic section, although "the unity of geometrical material and algebraic symbol "is the teaching objective of text books, but according to the material of text books, it is difficult for students to arrive.

本文首先试著分析目前高中数学教科书中，对於几何部份的教材编写上，由於编写者的意识型态不同，理念不同，数学教师对教科书的诠释就会因此而有不同，因而造成目前高中几何教学著重在代数方程式上的一些问题。

The biomass accumulated before flowering and seed yield were conic section while terminating flowering and maturity stage linear correlation respectively.

增加开花后群体的光合生产量油菜不同生育时期形成的生物产量对子粒形成的作用不同，初花之前形成的生物产量与子粒产量呈二次曲线关系，而终花期和成熟期的生物产量与子粒产量呈直线关系。

The effects of biomass accumulated in different stages were different for seed yield. The biomass accumulated before flowering and seed yield were conic section while terminating flowering and maturity stage linear correlation respectively.

增加开花后群体的光合生产量油菜不同生育时期形成的生物产量对子粒形成的作用不同，初花之前形成的生物产量与子粒产量呈二次曲线关系，而终花期和成熟期的生物产量与子粒产量呈直线关系。

A typical 3-RPS parallel platform manipulator mechanism is firstly studied by means of the above theory. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively.

以上述理论为武器首先分析典型的3-RPS并联平台机构，分别应用二次曲线分解理论和二次曲面分解理论，识别了该机构在三种位形下的主螺旋。

Given a hexagon inscribed in a conic section , the three pairs of the continuations of opposite sides meet on a straight line , called the Pascal line .

已知一个六边形内接于一条圆锥曲线，那么这个六边形对边的交点位于同一条直线上。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。