cone

核心释义

a solid or hollow object with a round base and pointed top

1. 1.

   通过将线段绕另一条相交线旋转形成的旋转曲面

   A surface of revolution formed by rotating a segment of a line around another line that intersects the first line.

2. 2.

   任何锥形物品

   any cone-shaped artifact

3. 3.

   通过将三角形绕其一条高旋转形成的旋转体

   A solid of revolution formed by rotating a triangle around one of its altitudes.

4. 4.

   底面为圆形,侧面逐渐收缩至一点的形状

   a shape whose base is a circle and whose sides taper up to a point

5. 5.

   通过将给定空间与闭区间的直积并将一端识别为一点形成的空间

   A space formed by taking the direct product of a given space with a closed interval and identifying all of one end to a point.

6. 6.

   呈锥形的胚珠或孢子鳞片或苞片的集合体

   cone-shaped mass of ovule- or spore-bearing scales or bracts

7. 7.

   任何大致呈圆锥形的物体

   Anything in the general shape of a cone.

8. 8.

   视网膜中小圆锥形结构的任何一种

   Any of the small cone-shaped structures in the retina.

9. 9.

   对象V及从V到图中每个对象的箭头,使得对于图中的任何箭头A,从V引出的箭头对与A相交

   An object V together with an arrow going from V to each object of a diagram such that for any arrow A in the diagram, the pair of arrows from V which subtend A also commute with it. (Then V can be said to be the cone’s vertex and the diagram which the cone subtends can be said to be its base.)

10. 10.

    具有某些理想闭包性质的形式语言集合,特别是正规语言、上下文无关语言和递归可枚举语言。

    A set of formal languages with certain desirable closure properties, in particular those of the regular languages, the context-free languages and the recursively enumerable languages.

球果；通过将线段绕另一条相交线旋转形成的旋转曲面；任何锥形物品；通过将三角形绕其一条高旋转形成的旋转体；底面为圆形,侧面逐渐收缩至一点的形状