The projecting positi- ons of the anterior and middle cere-bral arteries on the lateral surfaceof the skull are located on the oxyplane,and the depth of the arteriescan be measured on the Z-axis.
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释义
在 xoy 平面上可确定大脑前、中动脉在颅侧面投影位置,在 z 轴上的数值可确定它们在颅侧面的深度。