The results indicated stable technology, excellent quality of the product, high recovery ratio of metal and good economic benefit.
结果表明该工艺稳定，产品质量好，金属回收率高，经济效益好。
The results indicated stable technology, excellent quality of the product, high recovery ratio of metal and good economic benefit.
结果表明该工艺稳定，产品质量好，金属回收率高，经济效益好。
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