n.X线断层摄影术；X线体层照相术
The effect of time-varied wave field on the diffraction tomography was analyzed. 初步分析了时变入射波场对衍射层析成像的影响。
A chest computed tomography showed esophageal cancer with pneumopericardium. 其胸部电脑断层片也指出食道癌及心包膜腔积气。
