extracted solid
超临界萃取残渣 SFEF tailing
图为污水池里的油砂残渣，其中混有沙子、污水以及萃取未精炼的石油产品后所残留的有毒化学物质。
A containment pond holds tar sands tailings, consisting of a mixture of sand, water, and toxic chemicals that remain after the unrefined oil products have been extracted.
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