楼主: radiolover12345
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指针表红表笔接电池负极,黑表笔接正极,数字相反,是这样吗? |
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发表于 2022-9-28 10:18:16
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发表于 2022-9-28 11:23:25
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发表于 2022-9-28 20:18:58
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