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暖手寶換水後加多少鹽
暖手寶換水後加多少鹽
更新时间:2026-04-17 01:13:47

  1、水加食用鹽,增加其導電率,每斤水加一湯匙鹽就可減小水的電阻值即可。

  2、醋酸鈉的簡單家庭制法,用醋精(沒有的話用白醋也差不多)和純堿(蘇打)或小蘇打混合反應即可,不要用紅醋,有機物太多,在這裡用調制醋比釀造醋好。

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