不是。銅管是電線。它的一端是發電機（熱能轉換為電能）另一段接到煤氣開關，提供電力。

來源: QinHwang 於 2024-12-11 09:04:27 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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