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Digital Recording,Commercial digital recording of music dates from 1972, when the Nippon Columbia Company introduced an eight-channel pulse code modulation (PCM) converter for a standard video recorder. By the end of the seventies, a number of formats had developed, and digital recording had made a significant impact on professional recording activities.adjacent 发表于 2025-3-27 02:27:34
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John Earglend magnetic quantities generally require four units of which three are mass, length and time and the fourth can be some electrical or magnetic quantity such as current, permeability or permittivity. It is sometimes convenient to introduce temperature as an independent unit ranking equally with lengt臆断 发表于 2025-3-27 18:19:42
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John EargleTutte for typing the manuscript. Department of Physics H. G. JERRARD University of Southampton D. B. McNEILL 1963 Preface to the fifth edition Since the publication of the fourth edition in 1980 advances in technology have led to more precise values of the fundamental physical constants and a movemePhonophobia 发表于 2025-3-28 02:16:01
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John EargleTutte for typing the manuscript. Department of Physics H. G. JERRARD University of Southampton D. B. McNEILL 1963 Preface to the fifth edition Since the publication of the fourth edition in 1980 advances in technology have led to more precise values of the fundamental physical constants and a movemeMERIT 发表于 2025-3-28 10:36:39
John Eargleiss A. J. Tutte for typing the manuscript. Department of Physics H. G. JERRARD University of Southampton D. B. McNEILL 1963 Preface to the fifth edition Since the publication of the fourth edition in 1980 advances in technology have led to more precise values of the fundamental physical constants an