映射

So in this paper, the perturbation map is defined as a set-balued map.

所以在本篇论文中，我们将摄动映射定义成一个集值映射。

The corner-collision bifurcation of piecewise smooth systems is addressed.

推导了零时间不连续映射并给出角点碰撞分岔的分段映射。

The unified discrete iterative map model of peak current and valley current controlled buck, boost, and buck-boost converters is established, and the unified piecewise smooth iterative map and their corresponding characteristics equations are also derived.

本文建立了峰值电流和谷值电流控制Buck，Boost，及Buck-Boost变换器的统一离散迭代映射模型，并导出了统一的分段光滑迭代映射方程及特征值方程，通过数值仿真得到了占空比变化时的正、逆分岔图和Lyapunov指数谱。

If the colorset has a pixmap defined, this pixmap is used as the background of the menu.

如果色集定义了一个像素映射，那么这个像素映射被用作菜单的背景。

The target bitmap's area is mapped to the 2D plane, with its lower left corner at (0,0). This means that a bitmap or pixmap of dimensions will be mapped to a 2D rectangle window delimited by (0,0)-.

目标位图映射到2D平面上，左下角在(0，0)上，这就是说一个大小的位图和象素图将被映射到(0，0)-界定的2D矩形窗口。

The programs of all kinds of saint and interlayer mapping infinite element and finite element which analyze the problems of plane and spatial infinite domain.

模拟平面及空间无限域问题的各类映射节理、映射夹层无限元、有限元计算程序。

By using the special partial orders on the tree. we prove: every ω-limit point not in the closure of periodic point set 〓 has the infinite orbit;Ω-P.

第二章主要讨论树上连续自映射的若干动力性质，给出了连续树映射的ω极限集、非游荡集的一些拓扑结构。

As the inversion and compression attack includes the question relating to solving thepreimage from image of function, a subdivision algorithm for solving preimage of function withbounded derivative based on Lagrange mean value theorem is proposed firstly.

由于逆推压缩攻击方法涉及混沌映射的求逆，针对复杂混沌映射求逆困难的问题，运用拉格朗日中值定理，我们提出了求解导函数有界的函数原象的分割算法，给出了使分割算法计算复杂性上界达到最小的充分条件。

In this chapter, a requirement model of customized product based on multi-layer mapping is put forward, and the valid integration of customized requirement information with product structure information has been realized by the mapping relationship between them.

本章提出了基于多层次映射的定制产品需求模型，包括功能层、特征层和实例层，通过建立需求信息同产品结构的层次映射关系，实现定制产品需求表达、获取与产品结构信息的有效集成。

The paper puts forth that the numerical model of actual forming part is reconstructed by RE and the surface is regarded as actual trimmed surface, then grids and nodes mapping relationship between design model and actual forming part is acquired through compelling deformation simulation, and the design trimming line is dispersed into points according to a certain precision and the projective points and the coordinate values of the intersection points of projective line on the grids formed by discrete points are calculated along trimming direction, the new coordinate values of projective points and intersection points of projective line after deformation are calculated based on the mapping relationship of grids and nodes, the deformed trimming line can be acquired through fitting the points into curve.

本文提出通过逆向工程技术重构出实际冲压件的型面并以此型面为修边后实际冲压件的型面，然后采用强制变形仿真的方法建立设计模型和实际冲压件重构模型的网格和节点映射关系。将设计修边线按一定精度离散成点，然后根据修边方向计算出各点在网格上形成的投影点和投影线交点，根据之前计算出来的网格和节点映射关系就可以计算出投影点和投影线交点在变形后的新坐标，将其拟合成曲线就可以得到变形后修边线的形状。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。