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发表于2024-11-25
Bell and the Science of the Telephone pdf epub mobi txt 電子書 下載 2024
Alexander Graham Bell was a man committed to making life better for ordinary people. This book describes Bell's pioneering research into sound technology and his development of the first telephones, reliving the drama and tensions in the race to submit the first patent.
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Bell and the Science of the Telephone pdf epub mobi txt 電子書 下載 2024