1) transformation thought
变换思想
1.
By using transformation thought,this paper obtains the focus chord of all kinds of conic section through analyzing a sample in conic section teaching.
利用变换思想,对圆锥曲线教学中的一道例题进行分析,得出了各种圆锥曲线的焦点弦,并引伸其结论,将圆锥曲线的焦点弦变换为中心弦。
2) thought of variable replacement
变量代换思想
3) idea of changing variables
换元思想
1.
At a first glance,it is difficult to deal with some problems in higher mathematics,but sometimes they may be easily solved with the idea of changing variables.
对高数的一类问题 ,初看起来 ,难以入手 ,而对这一类问题有时可利用换元思想解决之。
4) transmutation
[英][,trænsmju:'teiʃən] [美][,trænsmju'teʃən]
思想嬗变
1.
Influence of the Thoughts transmutation at the End period of East-Han Dynasty on Treatise on Febrile and Miscellaneous Diseases;
汉末思想嬗变对《伤寒杂病论》的影响
5) thoughts changes
思想变化
1.
By analyzing Tao Yuanming s thoughts changes during his five in s and out s of court,the text aims at elaborating on the transition and its conflict in him from dedication to the country to withdrawal so as to restore the original background and reveal the basic reason why there had a transition happened to Tao Yuanming s life pursuit.
本文通过对陶渊明仕途五进五出期间的思想变化的分析,旨在阐述陶渊明由立志报国到归隐田园的思想矛盾斗争过程,还原陶渊明由从仕到归隐的真实背景,揭示陶渊明人生追求转折的根本原因。
6) ideology transformation
思想质变
1.
They promoted her ideology transformation.
正是在后期,丁玲参加了左联和党组织,发生了思想质变,也在创作上获得丰收。
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。
参考词条