Last Updated:2025/09/01
信号練習で、LeftFlagOut-RightFlagOut LeftFlagUp-RightFlagUp が「さ」を示すセマフォの位置だと学んだ。
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In signaling practice, left flag out–right flag out and left flag up–right flag up are the semaphore positions that indicate the syllable 'sa'.
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