平面

This paper presents an adjacency matrix method for identifying topological symmetry to planar kinematic chain s with multiple joints.

提出了识别含复铰平面运动链拓扑对称性的邻接矩阵方法。

All meshing elements except those are adjacent to edge and transition elements are equilateral triangle, which is very useful for finite element computation.

提出了一种可在平面内进行三角形有限元网格划分的方法，该方法可以在任意二维区域进行剖分；剖分单元除了边界和部分过度单元外，主要为等边三角形。

Among the objects as the principle of geometric perspective and aerial perspective, and make it conveying deep stereo spatial feeling on planar painting.

在绘画中，依照几何透视和空气透视的原理，描绘出物体之间的远近、层次、穿插等关系，使之在平面的绘画上传达出有深度的立体的空间感觉。

Shasta and Crater Lake, we had to go through the farmland. It is a fact that we can see it at the ground level in the cars but the aerial view presents a different perspective of the scenery.

Shasta和Crater Lake前，我们必需先穿越农田，坐著车子就能看到地平面是事实，但是从空中俯瞰却能对风景提供不同的视野。

The method of setting up an affine coordinates system to solve the problems for the spatial crank and rocker mechanism is proposed.

分析并回顾了在给定摇杆两个极限位置及行程速度变化系数的情况下，最小传动角为最大的平面曲柄摇杆机构和空间曲柄摇杆机构的设计问题。

Firstly, we calculate the Lie point symmetry of 1+2-dimensional nonlinear evolution equation:Which arises from the motion of plane curves in affine geometry.

我们首先计算了来自射影几何的平面曲线运动的非线性发展方程：所容许的李点对称群。

The image registration firstly assumes that there is some transformation between frame and frame of images, such as translation, affine and planar surface etc. and then registers images.

图象配准算法首先假设图象帧间存在某些变换，例如平移变换、仿射变换和平面变换等，然后对序列图象进行运动配准。

Now, hand-drawing is playing a very important role in flat designing: it is a very important way to inspire designers with creative afflatus; it is the linguistic carrier of artistic idea; it is the expression of soul of painting art.

现在，手绘在平面设计中有着十分重要的地位：它是启发设计师创作灵感的一个重要方式，是艺术意念的语言载体，是绘画艺术精髓的体现。

The chaotic planar motion of rigid spacecraft on an elliptic orbit in the gravitational field with air drag and internal damping and its control are investigated.

研究万有引力场中受大气阻力且存在结构内阻尼的非自旋航天器在椭圆轨道上平面天平动的混沌及其参数开闭环控制问题。

If the convex surface of a lens is placed in contact with a plane glass plate, as in Fig. 41-9, a thin film of air is formed between the two surfaces.

如果一个凸面镜放置于平面玻璃的一个接触点上，如图41-9所示，在它们两者的表面形成一层空气薄膜。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。