1) two-dimensional
二维变换
1.
This paper deals with an angle-computing issue: An angle made by two curves forms a new angle in another plane through two-dimensional transformation.
文章解决了平面上两曲线的夹角通过二维变换到另一平面上时所成角的计算问题。
2) direct 2-D method
直接二维变换法
3) two-dimensional
二维
1.
Analysis of the effect on two-dimensional transport-burnup calculation of dual-cooled waste transmutation blanket for FDS-I;
聚变驱动次临界堆输运燃耗计算二维效应分析研究
2.
Two-dimensional laser diameter detector;
JCJ-IIT二维激光测径仪
3.
Discussion of two-dimensional projective correspondence and perspective correspondence;
二维射影对应与透视对应的探讨
4) two-dimension
二维
1.
Fabrication of ordered two-dimensional metal nanoparticle arrays;
二维金纳米微粒有序阵列的制备
2.
The Practice of Two-dimension Rights Control in the Road Transportation Management System;
二维权限设置在道路运输管理系统中的实现
3.
The study and the application of two-dimension water flow and sediment mathematical model in the river;
天然河道水沙平面二维数学模型研究
5) 2d
二维
1.
2D unstructured dynamic mesh research on store separation;
外挂物投放问题的二维非结构动态网格技术研究
6) Two dimensional
二维
1.
High accuracy algorithm of numerical solutions of two dimensional hammerstein equations;
二维Hammerstein方程数值解的高精度算法
2.
The study on large scale two dimensional Bin Packing Problem and its tabu search algorithm;
大型二维装箱问题及其禁忌算法研究
3.
Comparing of results of two dimensional, quasi three dimensional and three dimensional models for groundwater;
地下水流二维、准三维及三维模型模拟结果比较
参考词条
补充资料:Radon变换和逆Radon变换
Radon变换和逆Radon变换
X线物理学术语。CT重建图像成像的主要理论依据之一。1917年澳大利亚数学家Radon首先论证了通过物体某一平面的投影重建物体该平面两维空间分布的公式。他的公式要求获得沿该平面所有可能的直线的全部投影(无限集合)。所获得的投影集称为Radon变换。由Radon变换进行重建图像的操作则称为逆Radon变换。Radon变换和逆Radon变换对CT成像的意义在于,它从数学原理上证实了通过物体某一断层层面“沿直线衰减分布的投影”重建该层面单位体积,即体素的线性衰减系数两维空间分布的可能性。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。