The expedition made significant achievements in surveys of rare earth, cobalt-rich crusts and polymetallic nodules.

“海洋六号”此次考察任务在深海稀土资源调查、富钴结壳资源和多金属结核资源调查等面取得了丰硕成。

The top of the ocean floor, just those top three inches where these metallic, these polymetallic nodules are located.

海底表面，是那些多金属结核所在最上面三英寸。

First discovered in the Arctic Ocean in 1868, polymetallic nodules can be found in almost all oceans, but are concentrated in the CCZ.

1868年首次在北冰洋发现多金属结核，几乎在所有海洋都可以找到，但它们集在东太平洋克拉里昂﹣克利珀顿区。

They are aware of this positive correlation between the number of polymetallic nodules on the ocean floor and the abundance of marine life.

他们意识到海底多金属结核数量与海洋生物丰富程度之间存在这种正相关关系。

And as production ramps up, international mining conglomerates are increasingly eyeballing the deep ocean where vast numbers of polymetallic nodules, naturally occurring concentrations of many of these metals, have been located.

随着产量提升，国际矿业巨头越来越将目光投向深海，在那里发现了大量多金属结核，这些结核自然形成了许多这些金属富集。