查询词典 plane curve

The yield curve in q direction in π plane is a curving triangle that obtained from the true-triaxial test data of Chongqing red clay.

用重庆红粘土真三轴试验数据拟合得到偏平面上的剪切屈服曲线为一曲边三角形。

Distribution of luminous intensity that may be represented by rotating about an axis a polar luminous intensity curve in a plane containing that axis.

可以围绕一个旋转轴或至少一个对称面的光强度分布。

The angular extent in a specified plane which contains all the radius vectors of the polar curve of luminous intensity having lengths greater than a specified fraction of the maximum.

在某一平面上，一定角宽范围内所包含的光强极轴曲线上的矢径长度均大于其最大值的某一特定比例，这种情况定义为光束的发散。

The computational methods of line element conic curve s tangent point decided by any line on projective plane is presented on the basis of this study.

从实际计算的角度出发，使用N矢量表示视平面上的点和直线，并由线素二次曲线的射影定义推导出线素二次曲线的N矢量方程；在此基础上，给出了射影平面上任意一条直线所确定的线素二次曲线切点的N矢量的计算方法。

Briefly speaking, a space curve is called affinely infinite if it is intersected by every plane in the 3D real projective space; otherwise, it is called affinely finite.

简单地说，在三维实射影空间，如果一条空间曲线与射影空间中任意一个平面都相交，那么称这条曲线是仿射无限的；反之是仿射有限的。

On the assumption that a triplet of points is matched to another one as a whole beforehand, we give an effective algorithm based on P〓-invariants. On the assumption that there exists an arbitrary closed curve in the scene plane, using a technique named projectively invariant decomposition of planar shapes, we realize another efficient algorithm.

在假设已知一对三点组整体对应的前提下，基于对排序和投影同时保持不变的P〓-不变量，给出了一种有效算法；在假设场景点集所在平面内存在一条封闭曲线的前提下，利用平面形状射影不变分解技术，提出了另一种有效算法。

A new algorithm is presented in this paper for piecewise quadric B-splines curve reconstruction from scattered data in a plane.

基于控制顶点扰动的思想提出了一种新的曲线重构算法，用于构造一条分段二次B样条曲线来逼近平面上的散乱数据点。

To overcome the inconvenience of traditional centrifugal pump impeller design, the quartic Bezier curve is used to design the meridional plane and blade profile.

针对传统离心泵叶轮设计步骤繁琐的不足，提出了采用4次Bezier曲线来设计叶轮的轴面流线及叶片型线的方法。

In the paper, up to 4 power of polynomial solutions of plane elasticity are used to interpolate the element dispacement and the 8-node curve quadrilateral rational finite element RCQ8 is derived. Examples show that, it can avoid shear locking and volume locking, and has high accuracy, high efficiency and good stability.

本文采用最高至4次的平面弹性力学的多项式解对单元位移插值，推出了八节点曲边平面理性元RCQ8，若干算例表明，本单元可以避免剪切自锁和体积自锁，具有很高的精度和效率以及数值稳定性。

Firstly, the curvature continuity conditions between two adjacent rational quadratic curve segments are derived. Secondly, an optimal algorithm is presented for solving out the tangent lines at every points of a closed point set in a plane.

首先导出了两相邻二次曲线段间曲率连续的拼接条件，然后提出了求解平面上一个闭的点列中每一点处的切线的最优算法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了