Royalty ran them on an industrial scale.
王室的厨房则是工业级的规模。
The company also engages in the hard minerals business through non-operated joint ventures and royalty arrangements in various coal, trona (natural soda ash), and industrial mineral mines.
该公司还通过从事非经营的合资企业和各种煤炭,天然碱(天然纯碱),工业矿物开采矿物质。
The company also engages in the hard minerals business through non-operated joint ventures and royalty arrangements in various coal, trona (natural soda ash), and industrial mineral mines.
该公司还通过从事非经营的合资企业和各种煤炭,天然碱(天然纯碱),工业矿物开采矿物质。
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