Beipiao Formation

例句：

1. 1.The Beipiao Formation is a significant geological formation in China.
   比派组系是中国重要的地质构造。
2. 2. The study of the Beipiao Formation has revealed many secrets about the Earth's history.
   比派组系的研究揭示了地球历史的许多秘密。
3. 3. The Beipiao Formation contains fossils that are millions of years old.
   比派组系中含有数百万年历史的化石。