查询词典 surfaces

Based on the concept that land surfaces are of low polarization for reflected sunlight, a new method for simultaneously retrieval of surface albedo and aerosol optical thickness was given by using polarized radiance as well as total radiance measured by POLDER instrument.

陆地上空气溶胶的反演一直是卫星对地观测的一个难点，针对这个难点，本文提出联合利用偏振反射率和总反射率来同时提取陆地上空的大气气溶胶和地表反射率的反演方案，围绕此方案展开了以下工作

However, due to the complex of computation and the need of the design, sometime we need to use polynomial approximation for a rational curves and surfaces.

然而由于计算的复杂性和设计的需要，有时我们还需要用多项式函数来逼近有理曲线和曲面。

In the final chapter, we discuss interval polynomial approximation of rational surfaces. Firstly, we briefly state the interval-surface approximation based on the Taylor Expansion, and later, we give out a better interval-surface approximation based on the optimization method, which is also the main work of this paper.

第四章主要介绍了有理曲面的区间多项式的逼近，首先简单介绍了基于泰勒展开来做的区间曲面逼近，后面是本文的主要工作，我们基于优化方法得到了更好的区间曲面逼近，它也是本文的重要部分。

The formation mechanism of the screw structures on the surfaces of polytype crystals is discussed according to the theoretical model of anionic coordination polyhedron growth units.

本文用负离子配位多面体生长基元理论模型讨论了多型性晶体表面螺旋结构的形成，提出在多型性晶体中配位多面体呈层状分布，配位多面体的面为层的边界，上、下层负离子配位多面体不是呈镜象对称的，在三方晶系和六方晶系的晶体中是沿晶轴a、b错开，上、下两层负离子配位多面体体呈交叉对应，从而达到稳定平衡。

While computing radar cross section, surfaces of objects were primarily triangulated, which was called prepositive disposal. The length of the edge of the triangle was generally 0.1 wavelength (in general one wavelength is 3cm).

在雷达散射截面计算中，首先需要将物体的表面进行三角剖分，称为前置处理，三角片单元的边长通常为0.1个波长（一般1个波长取3cm）。

The as- sintered silicon carbide hollow cylinders had been ground on their inner and outer surfaces, and mounted with a conical press fit on steel shafts.

该作为-烧结空心圆筒已地面就其内，外表面，并展开与圆锥新闻适合对钢质杆身。

Whether the collision occurs between tool and the surfaces of workpiece is decided by comparing the distance between the nodes which collisions occur in primary collision detection and the axis of tool.

通过比较初步检测中发生干涉节点中的离散点与刀具体轴线的距离来确定工件表面是否确实与刀具体产生干涉。

Then, based on the mean curvature, Gaussian curvature and the function of principal curvature, the minimal loci of the principal normal surfaces of curves, the curves with constant Gaussian curvature and the two curves of which the ratio of their functions is constant can all be obtained, as well as the properties of geodesic curve and lumbar curve.

再根据平均曲率、高斯曲率及主曲率函数，能得到曲线的主法线曲面的极小轨迹、常高斯曲率曲线及两个主曲率函数之比为常数的曲线。还给出曲面上测地线和腰曲线的性质。

To decompose prismoid subject into sweepable sub-volumes, the source vertices project into target surface and decompose target surface to many subdomains. The virtual surfaces are found by linking opposite vertices from source surface and target surface, finally cut volume to sub-volumes. It is also designed spheriform decomposition based on geometry character.

虚拟分解主要是通过将棱柱体的源曲面边界顶点映射到目标曲面，将目标曲面划分成和源曲面一一对应的区域，连接对应的顶点建立虚拟剖分曲面，利用虚拟曲面将复杂的几何体剖分成子几何体。

As special cases minimal surfaces in complex projective space CP^n are investigated.

另外， 本文研究了特殊的Grassmann流形–复射影空间CP^n中的极小曲面。

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。