halogen sediments

例句：

1. 1. The study of these sediments could provide valuable insights into the history of the ocean floor.
   研究这些沉积物可以提供宝贵的见解，了解海洋底部的历史。
2. 2. The halogen sediments are believed to be a significant source of nutrients for marine life.
   卤素沉积物被认为是海洋生物的重要营养来源。
3. 3. The halogen sediments have been found to contain trace amounts of heavy metals that can be harmful to human health.
   卤素沉积物被发现含有对人类健康有害的微量重金属。