File talk:RMS Titanic distress signal simulated as morse code.wav
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CW B
[編輯]http://newsm.org/buildings/massie/
https://www.youtube.com/watch?v=snkwsU98QlQ
https://www.youtube.com/watch?v=8E4wrcVQSgw
Hello the sound is not the same with this type of wave.
--F1jmm (對話) 22:27, 25 June 2017 (UTC)