我想到過無線電，但不懂的很多，沒法踩進去。物理消滅代價可能會比較高昂，比如如果是需要高度感應的

來源: 油胖子於 2023-01-19 11:13:03 [舊帖] [給我悄悄話] 本文已被閱讀：次

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