明白。萬用表的讀數其實一直在變，不過普通萬用表反應慢，一開始讀數低，過幾分鍾就會停在比較高的讀數。

來源: 原上草2017 於 2019-09-22 12:09:34 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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