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手冻了为什么不要用火烤

更新时间: 2020-09-23 00:00:00     

手冻了以后,受冻地方的血管里的血流会不通畅,运送的养料也跟着减少。如果用火烤会使手温很快的升高,冻了的地方消耗的养料会突然增加,损伤的血管因为无法马上恢复通畅,无法把大量的养料运来,使得手上的皮肤和肌肉缺乏营养,很容易发生坏死。

关键词: 为什么 不要

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