Last Updated:2025/08/31

海上の掲示で、---はカタカナの「レ」を表すモールス信号の視覚表示として使われていた。

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On a maritime display, the visual Morse code rendering of the katakana 're' was used.

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On a maritime display, the visual Morse code rendering of the katakana 're' was used.

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