(Takashiflower) Diy Technologica Primary Secondary School Invention Electronic Educational Toy Hot Sale tại Lotte Market
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Telegraph is a widely used telecommunication tool in the early 20th century. People are needed to send and receive telegrams. Today, with the development of science and technology, the ”ancient” Morse code: Còn hàng
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Giới thiệu (Takashiflower) Diy Technologica Primary Secondary School Invention Electronic Educational Toy Hot Sale tại Lotte Market
Telegraph is a widely used telecommunication tool in the early 20th century. It uses Morse code to transmit information. People are needed to send and receive telegrams
I-code transmission and decoding reception.
Today, with the development of science and technology, the ”ancient” Morse code
Still in use!