In addition, cratering and ground shock phenomena are observed, as will be described in chapter vi . 此外，还可以观察到巨坑或地面冲击波的现象，这些现象将在第六章中加以叙述。
2.
Failure : pitting , cratering , or erosion of the surface . obvious and significant deterioration 失败：表面出现斑痕、坑凹或侵蚀，明显且重要的材料毁损。
3.
If that is the case , it could mean that lunar cratering history is unique and cannot be used as a guide for dating features on other planets besides earth 果真如此，那可能表示月球的撞击历史是独一无二的，不能做为标定地球以外的其他行星地形结构年份的指标。
