The cooling system consists of two reusable sealed water filled canisters that are easily refrozen in one step without the need for multiple freezing steps.
冷
中含有两个可以重复使用的密封的冷体，易于冷冻，一个步骤即可完成，
需要复杂的冷冻程序。
The cooling system consists of two reusable sealed water filled canisters that are easily refrozen in one step without the need for multiple freezing steps.
冷中含有两个可以重复使用的密封的冷体，易于冷冻，一个步骤即可完成，需要复杂的冷冻程序。
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