查询词典 fluting plane

In this paper,the B-spline curve is supposed as boundary curves,when they are in two paralled plane and two arbitrary plane,the condition about the control vertex of characteristic polygon when the ruled surface is developable are gained,solved the designing problem of degree and degree B-spline curve .Throughing (2,3) degree and (2,2) degree B-spline ,we haveproved the validity and utility of this method.

本文用两条B样条曲线作边界曲线，当它们位于两平行平面上和两任意平面上时，研究得到了由它们形成的直纹面为可展面时它们的特征多边形顶点满足的条件，解决了(n，n+1)次和次可展B样条曲面的设计问题，然后以(2，3)次和(2，2)次B样条曲面为构造实例，证明了该算法的正确性和实用性。

We waited for 1 hr to board a smaller plane to Chitose airport.I saw a few students waiting to board their plane as well.

不费时间，拿了行李到了另一边等待另外一班飞机飞往北海道的千岁机场。

A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it.

由完全相交的一个圆锥体和一个平面的交集所形成的闭合的平面曲线。

A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone .

一个平面与正圆锥体的底部相交而形成的不闭合的曲线。

A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone.

具有抛物面主镜和双曲面次镜的一种折射式望远镜；光线被集中到主镜中心的孔径。

A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve .

一个正圆锥体与一个平面相交所形成的平面曲线。

Convex Al plates were also shocked with the confinement of plane glass,and the plane glass's confinement is still effective as long as the plate's circumflexion radius is greater than 400mm.

对于实际工程应用中有重大意义的非规则平面情形下的约束机制，实验表明，在曲率半径大于400mm时平面约束结构的作用依然有效。

In order to study the popular curve shortening flow in the plane, Gage[3] has shown in 1983 the following inequality, if k is the signed curvature of a closed convex plane curve γ with length L and enclosing area A, then one gets Gage calls it an isoperimetric inequality in [3], but he does not show that the equality holds if and only if the curve γ is a circle, while as an isoperimetric-type inequality, one should prove this kind of result.

Gage称之为等周不等式，但他没有证明其中等号成立当且仅当，γ为圆周，而作为等周型的不等式是应该证明这种结果的，本文我们利用单位速率外法向量流，通过努力证明了这种结果，从而把Gage不等式加强成更加等周的形式。

The vanishing points of all lines in the same plane are colinear at the vanishing line of the plane.

同一平面上的所有直线对应的消失点共线于该平面的消失直线。

The algorithm is concerned with selection of color spaces and analysis from point to plane and back from plane to point.

它涉及到对颜色空间的选取，以及由点到面再回到点的分析方法。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。