subpontine

例句：

1. 1. The subpontine sediments are rich in organic matter and have been eroded for thousands of years.
   亚基平层的沉积物富含有机物质，已经被侵蚀了数千年。
2. 2.The subpontine layers contain valuable minerals that can be extracted for industrial use.
   亚基平层含有有价值的矿物，可以被提取用于工业使用。
3. 3. The subpontine deposits are a source of natural resources for many industries.
   亚基平矿床是许多行业的自然资源来源。