曲面

This result shows that if the image of the Gauss map of an evolution convex surface with planar boundary covers some hemisphere, such a surface maybe be of infinitesimal nonrigidity for the isometric infinitesimal deformation of planar boundary.

这个结果表明如果带平面边界的凸旋转曲面的Gauss映照像覆盖了某个半球，这曲面对于保持平面边界的无穷小等距形变来说可能是非无穷小刚的。

As to the space curve coils the arbitray right line and circles to obtain the rotational surface ∑, the body of rotational through ∑ s surround into(the part sealing off does not put the back plane disc), the integration formula about area of rotational surface and volume of the body of rotation are given by using coordinate transformation and Infinitesimal method.

利用坐标变换与微元法得到了空间曲线绕任一直线旋转所得旋转曲面∑的面积公式，以及由∑所围旋转体的体积公

In this way,the relationship between deformation of surfaces and integrable equations are set up.

第一章，我们简单地回顾了几何中曲线和曲面运动发展的历史。

In particular,many integrable equations arise naturally from motions of curves and surfaces.

特别地，许多可积方程都自然地产生于曲线和曲面运动。

B- spline Expression of Integral Curvature Line on NURBS Surface.

李宏坤，王国瑾，刘利刚， NURBS 曲面上积分曲率线的 B 样条表示，计算机辅助设计与图形学学报，2006， 18(3)：

The general formula to calculate the rotating surface area which is shaped by rotating the curve c in xoy plane around the L-axis by using curve integral.

依据所证得的通用计算公式推证得到，在某些特定情形下利用定积分计算旋转曲面面积的具有针对性的公式。

In this research, an integral surface flattening algorithm is proposed from the view point of geometric form.

本研究从3D 造形的观点，提出一整体性的曲面摊平演算法。

The term involving the control surface integral represents the convective effects associated with the flow of the system across the fixed control surface.

这条件包含了控制曲面积分，代表着与在固定控制界面流过的流动系统相关的对流效应。

New ideas,methods and improvements are suggested, such as impulse time integral function, surface fit-ting, inverse method and selfrconsistency examination etc.

近年来，Lagrange分析方法得到迅速的发展，提出了不少新的思想、方法和改进，如冲量时间积分函数、曲面拟合，反解法和自治性检验等。

Therefore, the non-manifold structure is defined by complex. This unifies wireframe, surface and solid modeling, and allows lamina face, lamina vertex and the internal structures of an object.

这样，采用复形方法定义了非流形结构，统一了线框造型、曲面造型、实体造型，容纳了悬面、悬边、悬点等情况及物体的内部结构。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。