Selecting of proper cryoprotectant agents is a principle step of cryopreservation, for these agents play an important role in freezing cells.

低温保护剂在细胞的低温保存过程当中起着很重要的作用，选择合适的低温保护剂是低温保存过程中首要解决的问题。

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Selecting of proper cryoprotectant agents is a principle step of cryopreservation, for these agents play an important role in freezing cells.

低温保护剂在细胞的低温保存过程当中起着很重要的作用，选择合适的低温保护剂是低温保存过程中首要解决的问题。

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