产品差别与市场结构 Product differentiation and market structure ; Products difference and market structure
產品別結構
Product structure
以上为机器翻译结果，长、整句建议使用 人工翻译 。
由于产品粒度结构的改善，使反浮选选别效果大大提高，金属回收率从原有的68.65%提高到74.07%。
Due to the improvement of the structure of product particle size, the result of reverse flotation was greatly improved, with the metal recovery increasing from 68. 65% to 74. 07%.
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