شاهد مقطع فيديو مجاني Morse Code Flashing Light

Name: Morse Code Flashing Light
Uploaded: 2017-02-21T16:08:10Z
Duration: 8 min 22 s
Description: Video introduces the Morse characters L Q R Z F X Y as sent by flashing light by ships at sea, providing a number of drills to practice basic recognition.

(33.3 MB) 21 Feb 2017 أُضيف يوم عدد مرات اللعب 184 تعليمي ضوء أمان علوم Tutorial

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Video introduces the Morse characters L Q R Z F X Y as sent by flashing light by ships at sea, providing a number of drills to practice basic recognition.