a curve or surface whose equation (in Cartesian coordinates) is of the second degree
双语例句
1. We call this surface the stress quadric.
我们称这个曲面为应力二次曲面。
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2. We call this surface the stress quadric .
我们称这个曲面为应力二次曲面。
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3. Furthermore, the subdivision formula of the quadric C-curve is presented at its arbitrary point.
另外,还给出了二次C-曲线在任意一点的细分公式。
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4. This paper proposed to use immune algorithm based on real-number-coding to extract quadric surface.
提出了基于实数编码免疫算法针对离散数据点进行二次曲面提取的方法。
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5. It is very helpful to instinctively understand the morphology of the QSIC such a quadric pencil has.
它们对直观上理解两二次曲面交线的拓扑形态有非常重要的意义。
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6. The new scheme is secure under condition of intractability assumption of quadric remain and the security of RSA.
新方案效率高,在二次剩余困难假设和RSA安全的条件下是安全的。
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7. A new method of completing the square with reverse order is presented by change quadric form into standard form.
提出了一种新的将二次型化为标准型的配方法——逆序配方法。
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8. By using the role and the drafting methods, projective contour line of a quadric at random position can be drawn.
利用这一规律和作图方法,可以解决任意位置的非退变二阶曲面的投影轮廓线的作图问题。
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9. The test results are expressed by quadric conversion, and the reliability of the theory calculation is validated.
试验内容包括光体和全附体的阻力试验,试验的结果采用二因次换算法,验证了理论计算的可靠性。
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10. The key idea of SSVM is to transform the standard model of SVM into an unconstraint quadric convex programming problem.
SSVM模型的基本思想是将标准的支撑向量机模型转化成一个无约束二次凸规划模型进行求解。
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11. In this paper, the authors expounded covariance analysis with two correlated variables and solved it with quadric form.
利用二次型解决了双协变量的方差分析方法。
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12. In order to solve the problem, this paper put forward an improved mesh simplification algorithm based on quadric error metrics.
为了解决这个问题,本文作者提出一种改进的基于二次误差测度的网格简化算法。
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13. The actuating principle of an outward translational swinging door for bus is analogous to the kinematics of a quadric crank mechanism.
外摆平移式车门的运动原理,相当于平面四连杆机构的运动原理。
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14. This paper presents a new algorithm for realtime generation of rotating paraboloid images, which can be extended into quadric surfaces.
本文提出一种全新的,可推广至一般二次曲面的旋转抛物面实时成象的等灰曲度线算法。
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15. The common method to quadric surface equation is to get the Normal Component first, and then write out the equation through dot method.
求切平面方程的一般方法是先求切平面的法向量(借助偏导),再用点法式写出切平面的方程。
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16. The connection quadric exploit is a quite active application domain of present structure computation model updating technology research.
接口二次开发是目前结构有限元模型修正技术比较活跃的一个应用领域。
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17. A triangle collapse algorithm is presented, which is based on internal angles weighted and quadric error metrics to simplify mesh models.
给出了一种基于三角形内角加权和二次误差度量的三角形折叠算法来简化三角网格模型。
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18. The function of binary quadric fertilizer effect has been extensively used in China to determine the optimum economy fertilizing quantity.
针对目前国内利用二元二次肥料效应函数确定最佳经济施肥量的数学方法存在的问题。
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19. To solve the problem of quadric surface reconstruction in reverse modeling for mechanical parts, a two-step fitting algorithm was presented.
针对机械零件反求建模过程中常见二次曲面的表面重建问题,提出了曲面拟合分步计算法。
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20. Optimal regulation rules and minimum economic loss for economic systems with quadric performance index as well as a simple example are given.
对于二次型性能指标的经济系统给出了最优调节规律和最小的经济损耗。
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21. One of difficulties in descriptive geometry theories is to draw the intersection created by two general position intersecting quadric surfaces.
画法几何学中的难点之一是求解两一般位置二次曲面的交线。
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22. In order to effectively combine the two schemes, uses quadric error matrix to transform related information between the two steps in the whole process.
为了将两者有效结合,将二次误差矩阵应用在整个简化过程中,简洁地传递了两个过程中的相关信息。
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23. The conventional quadric rate-distortion model was improved and a new one was introduced by incorporating the human visual system (HVS) characteristics.
算法对传统二次率失真模型进行了改进,并结合人眼的立体视觉特性,提出了新的码率控制策略。
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24. The planar components and straight line components of the quadric surfaces intersections are studied precisely by means of matrix algebra in this paper.
本文利用特征多项式方程使得二次曲面交线的平面曲线分支的求解简化成平面与二次曲面求交问题。
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25. In this paper, the fifing method which stimulates the Geoid using quadric polynomial, BP network and RBF network are provided for the GPS height conversion.
本文采用二次曲面拟合、BP网络和RBF网络进行了GPS高程转换,并在网络结构改进等方面作了分析。
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26. By using quadric LQR algorithm, optimal control rule was educed. According to extremum principle, control force of driver on semi-active damper was confirmed.
通过二次型最优控制LQR算法,根据极值原理导出最优控制律,以确定半主动减振器驱动器控制力。
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27. Optimal regulation rules and minimum economic loss for economic systems with an integral inequality constraint on the control of quadric performance are given.
对于具有控制积分不等式约束的二次型性能指标的经济系统给出了最优调节规律和最小的经济损耗。
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28. Optimal regulation rules and minimum economic loss for economic systems with an integral inequality constraint on the control of quadric performance are given.
对于具有控制积分不等式约束的二次型性能指标的经济系统给出了最优调节规律和最小的经济损耗。
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用作形容词 (adj.)
To solve the problem of quadric surface reconstruction in reverse modeling for mechanical parts, a two-step fitting algorithm was presented. 摘要针对机械零件反求建模过程中常见二次曲面的表面重建问题,提出了曲面拟合分步计算法。
Lastly, experiments were performed to evaluate the performance of this method in comparison with the methods using linear classifier and quadric surface. 最后,为了评估该方法的性能,分别使用线性分割器和二次曲面分割器的方法进行了对比实验。
用作名词 (n.)
In this paper, the authors expounded covariance analysis with two correlated variables and solved it with quadric form. 利用二次型解决了双协变量的方差分析方法。
An algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented. 摘要提出了基于二次曲面拟合误差分析和几何属性分析的特征曲面识别算法。
An algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented. 摘要提出了基于二次曲面拟合误差分析和几何属性分析的特征曲面识别算法。
Lastly, experiments were performed to evaluate the performance of this method in comparison with the methods using linear classifier and quadric surface. 最后,为了评估该方法的性能,分别使用线性分割器和二次曲面分割器的方法进行了对比实验。