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来源:雅诚德英语网
The results showed that different pulps had significant effects on improvement of paper strength and retention of the pulps by CPA.
结果表明,不同浆种对CPA的纸力增强和助留效果有较大的影响。
The results showed that different pulps had significant effects on improvement of paper strength and retention of the pulps by CPA.
结果表明,不同浆种对CPA的纸力增强和助留效果有较大的影响。