生活 来源:四海网综合头条 时间:2021-12-09 14:34:31
1、饭盒打不开被吸住了需要放回微波炉中加热,然后迅速打开。
2、打不开是因为里面空气本来是热的,后来变凉了,气体收缩,使里面气压远远小于外部的大气压,所以会比较难打开。
3、所以要放热水中烫,使里面的空气受热膨胀,才能容易打开。
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