许多在海里死亡的生物很快便被沉淀物掩埋。
Many organisms that die in the sea are soon buried by sediment.
潜泳的时候，不要碰珊瑚礁或者搅动沉淀物，因为这样做可能会破坏珊瑚脆弱的生态系统。
When snorkeling, do not touch the coral or stir up sediment, as these actions can damage the reef's fragile ecosystem.
结果表明 SRS-82 株的无细胞提取液和其培养上清液的离心沉淀物皆具有致白血病活性。
The results showed that both the cell-free extract and culture supernate from mouse SRS-82 cell line were leukemogenic.
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