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研磨杯盖子打不开怎么办

更新时间: 2020-11-03 00:00:00     

研磨杯盖子打不开的话可以放在热水里泡一会儿利用热胀冷缩原理,再试试看。或者拿着杯子,倾斜45度将杯盖在地面或桌面上磕几下,转个位置再磕几下,再试试看。对于不易加热的液体,可以在盖子边上滴加少量蒸馏水或者纯水等,待水渗入瓶口处后,用手握住瓶子一会,然后就可以打开了。造成研磨杯盖子打不开的原因是配溶液时容量瓶内温度高就盖上盖子,在室温高时盖上盖子,在室温低时打开盖子。

关键词: 研磨 盖子 怎么办

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