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在工业生产的规模上研究了缩短生化制品冻干时间的问题，并对降温速度、加热速度和系统压力对冻干时间的影响进行讨论．在实验基础上改进了冻干工艺条件．人白细胞干扰素的冻干时间从３８ｈ减少到２４ｈ．
The problem of shortening the freeze-drying time of biochemical products was studied on the scale of industrial production. The effects of cooling rate, heating rate and system pressure on the freeze-drying time were also discussed. Based on the experiment, the freeze-drying process conditions were improved. Human leukocyte interferon lyophilization time reduced from 38h to 24h.