你即將離開本站

並前往https://www.almanac.com/fact/sos-the-letters-signified-by-the-signal-word-definition

SOS | Almanac.com

SOS was chosen as the universal distress signal because this combination of ... stood out against the background of three-character Morse Code letters.

確定！ 回上一頁

查詢 「Morse code SOS」的人也找了：

  1. Morse code
    2.
  2. sos求救
    3.
  3. morse code alphabet
    4.
  4. SOS meaning
    5.
  5. Morse code wiki
    6.
  6. Morse code table
    7.
  7. sos摩斯密碼
    8.
  8. SOS light
    9.