There are a lot of factors that affect the quality, such as protective agent, freezing temperature, freezing rate, freeze - drying conditions.
影响冻干角膜效果的因素涉及方方面面，诸如保护剂系统，预冻温度，降温速率，冷冻干燥条件等。
The optimal fermentation condition was found out, the growth improver and protective agent in freeze drying were decided in this study.
本研究确定了最佳发酵工艺，促生长物质及冻干保护剂。
The optimal fermentation condition was found out, the growth improver and protective agent in freeze drying were decided in this study.
本研究确定了最佳发酵工艺，促生长物质及冻干保护剂。
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