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郑州大学材料工程学院赵清香教授领导的课题组，利用生物发酵法生产的二元酸研制出长碳链尼龙1212，从而结束我国长期依赖外国进口的局面，
Zhengzhou University School of Materials Engineering, Professor Zhao Qingxiang group led by the use of biological fermentation of dicarboxylic acid developed long carbon chain nylon 1212, thus ending our long-term dependence on foreign imports,