two dimensional laplace transformation 二重拉普拉斯变换
two-dimensional fourier transformation 二维傅里叶变换
two-dimensional projective transformation 二维射影变换
two-dimensional fourier transformation dft 二维fourier变换
This paper presents a method which can be used for the shape analysis of two-dimensional image of a moving object in terms of the fast transformation (r transformation).
本文提出了将一种快速变换(r变换)用于对运动目标的二维图象进行形状分析的方法。
Objective To explore characteristic imaging and diagnostic value of cavernous transformation of the portal vein (CTPV) using two-dimensional color Doppler ultrasonography.
目的探讨门静脉海绵样变性的二维彩色多普勒超声的声像图特征及诊断价值。
By applying formal asymptotic analysis and Laplace transformation, we obtain two-dimensional model system of linearly viscoelastic "flexural" shell from three-dimensional equations.
应用形式渐近分析和拉普拉斯变换，我们从三维线性粘弹性方程组得到二维线性粘弹性弯壳的数学模型。
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