981| 8
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把两片镍片叠焊在一起,下面垫着的木板焦了,即使把点焊机的时间和电流调到最小 |
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发表于 2023-12-30 17:32:40
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发表于 2023-12-30 18:40:06
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发表于 2023-12-30 19:43:00
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