such as protective agent
比如保护剂
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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。
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