20A以内问题不大，但我觉得旧的螺旋的更为可靠，虽然我两者都用

来源: chinomango 于 2026-02-14 19:49:49 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

很简单啊，这种就是压一条线，接触面比线截面小太多了

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