By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.
利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。
Panel data is widely used in modeling on economic problems because it can describe the object's dynamic characters from time and cross-section in two-dimensional space.
面板数据由于能够从截面和时间构成的二维空间来描述研究对象的动态特征而被广泛应用于经济问题的建模实践中。
At the same time, we introduce a kind of two dimensional inverse heat conduction problems which do not convect with outer space in doing the compression, and we have got the expected result.
同时将一类与外界无热交换的二维逆热传导方程应用到图像压缩中，并取得了预期的效果。
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