Using geometrical optics theory and off-axis aberration analysis,a set of crossed double strip integrators for high power CO_2 laser beam homogenizing has been designed.
利用几何光学原理和轴外像差理论,设计一种应用于大功率 CO_2激光陶瓷烧结实验的反射型正交双带式积分镜均束装置。
Objective: To study the imaging features of extra-axial tumors and tumor-like lesions involving both middle and posterior cranial fossae and to make a classi?cation.
目的提高对跨中、后颅窝轴外肿瘤及肿瘤样病变的影像学认识。
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