| 单词 | magnetic recording |
| 释义 | magnetic recordingnounthe process of recording sound or other data on magnetic tape, wire, etc. Origin of magnetic recordingFirst recorded in 1940–45 OTHER WORDS FROM magnetic recordingmagnetic recorder, nounWords nearby magnetic recordingmagnetic pole strength, magnetic potential, magnetic pulley, magnetic pyrites, magnetic quantum number, magnetic recording, magnetic resonance, magnetic resonance angiography, magnetic resonance imaging, magnetic resonance scan, magnetic resonance scanner Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for magnetic recordingmagnetic recording The recording of a signal, such as sound or computer instructions, in the form of a magnetic pattern on a magnetizable surface, such as tape or a disk coated with metal oxides. In the recording process, small electromagnets are used to convert an electrical signal into a magnetic one that magnetizes that surface. The value of the signal at any given point corresponds to the degree and polarity of magnetization of the surface at a corresponding point. During playback, the opposite process occurs, and the magnetic fields along the surface are converted into electrical signals for further processing. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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