hemipelagic sediment

例句：

1. 1. The study of hemipelagic sediment provides valuable insights into the ocean's biogeochemical cycles.
   研究半海相沉积物有助于我们了解海洋的生物地球化学循环。
2. 2.In this region, hemipelagic sediment is a significant source of nutrients for marine life.
   在这个区域，半海相沉积物是海洋生物的重要营养来源。
3. 3.The hemipelagic sediment layer is crucial for the formation of coral reefs and other marine ecosystems.
   半海相沉积层对于珊瑚礁和其他海洋生态系统的形成至关重要。