Unverified85% confidenceDecision RuleTime unknown
无铅焊接需选无铅专用助焊剂:无铅焊锡熔点高(约217℃ vs 有铅183℃),普通有铅焊剂在高温下过早挥发失效,导致虚焊
1
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85%
Confidence
Long-term
Relevance
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