1) approximate substitute
近似替代变换
1.
In this paper,a new type euqispeed output mechanismball slip groove output mechanism for cycloid ball transmission is presented based on approximate substitute principle and error of it is analyzed.
摆线钢球传动中 ,依据机构近似替代变换原理 ,提出了一种新型等速输出机构钢球滑槽式输出机构 ,并对该机构进行了误差分
3) approximate replace
近似代替
4) approximate transformation
近似变换
1.
Briefly introduced several methods of the approximate transformation of the plane rectangular coordinates,discussed the principle of the Topological transformation method to carry on the approximate transformation of the plane rectangular coordinates,and had carried on the practice analysis to its transformation precision.
简要介绍了对平面直角坐标进行近似变换的几种方法,重点讨论了拓扑变换法对平面直角坐标进行近似变换的原理,并对其变换的精度情况进行了实践分析。
5) approximate replace precision
近似代替精确
1.
With teaching experience of Higher Mathematics in higher vocational college,the author explores how to reveal the higher mathematics thinking method of "Straight replace curve" in part,"approximate replace precision" as a whole by establishing and introducing of three concepts of the limit,derivative,integration,and to train the students how to analyze and solve problems.
结合在高职院校《高等数学》课程的教学实践,探讨如何通过微积分三大概念——极限、导数、积分的引进和建立,揭示高等数学思想方法——局部"以直代曲",整体"近似代替精确"等,培养学生分析和解决问题的能力。
6) Approximatewavelet transform
近似小波变换
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