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Hua Li*, Lihua Li, Xingli Jiao, Xueli Qin School of Chemical and Energy Engineering, Zhengzhou University, Zhengzhou 450001, China, Email: lihua@zzu.edu.cn School of Chemical and Energy Engineering, Zhengzhou University, Zhengzhou 450001, China, Email: hua_iou@126.com School of Chemical and Energy Engineering, Zhengzhou University, Zhengzhou 450001, China, Email: jiaoxingli123@163.com School of Chemical and Energy Engineering, Zhengzhou University, Zhengzhou 450001, China, Email: 943167120@qq.com Abstract:

Analysis of heat and mass transfer mechanism of vacuum freeze-drying in the primary drying