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.
系统中含有两个可以重复使用的密封的体，易于冻，一个步骤即可完成，
需要复杂的冻程序。
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.
系统中含有两个可以重复使用的密封的体，易于冻，一个步骤即可完成，需要复杂的冻程序。
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