月球哥白尼纪次级坑的形态特征及其空间分布

张珂, 刘建忠, 程维明

Morphological features and spatial distribution of the lunar Copernican secondary craters

Ke ZHANG, Jianzhong LIU, Weiming CHENG

图5 撞击坑体入射方向判断综合解译

Fig.5 Comprehensive interpretation of determining the impact directions