22到23哩吧。這麽一個距離，空氣擾動對清晰度影響很大，所以主要是碰好天氣，需要好的能見度，晴天還不夠。

來源: 吸海垂虹於 2026-02-28 16:36:41 [舊帖] [給我悄悄話] 本文已被閱讀：次

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