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1.The liquid nitrogen freezing system is used to freeze the samples quickly and efficiently.
液态氮冷冻系统用于快速且有效地冷冻样本。
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2.The liquid nitrogen freezing system is a crucial tool for cryopreservation.
液态氮冷冻系统是冷冻保存的关键工具。
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3.The liquid nitrogen freezing system was developed to prevent contamination during sample preparation.
液态氮冷冻系统被开发出来，以防止样品准备过程中的污染。