本文给出了采用IGRF模型的哨声模波三维射线跟踪方程，并概述了射线跟踪模型及数值计算程序。
In this paper we have developed a program for three dimensional ray tracing of whistler-mode waves in which the IGRF model was adopted.
基于三维射线跟踪的微变网络方法和波前重建思路 ，提出一种适用于三维复杂介质地震波走时的快速算法。
This paper presents a three-dimensional propagation model for path-loss prediction in an urban microcell, based on ray-tracing techniques.
目的利用双平面X射线投影图像序列和参考CT容积图像进行冠状动脉的三维运动跟踪建模。
Objective To establish 3D coronary artery motion tracking by the images of double plane X-ray projection and 3D CT volume sequence.
目的利用双平面X射线投影图像序列和参考CT容积图像进行冠状动脉的三维运动跟踪建模。
Objective To establish 3D coronary artery motion tracking by the images of double plane X-ray projection and 3D CT volume sequence.
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