classification of tunnel surrounding rock

例句：

1. 1.The scientists classified the new species into differentgroups.
   科学家们将新物种分成不同的组。
2. 2.The museum has a vast collection ofartifacts that can be classified by typeand age.
   博物馆收藏了大量的文物，可以根据类型和年代进行分类。
3. 3. Theresearchers are trying to classify the bacteria based on theirgenetic makeup.
   研究人员正试图根据细菌的遗传构成对其进行分类。