| 单词 | optical sound |
| 释义 | optical soundnoun Movies.sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack. Origin of optical soundFirst recorded in 1930–35 Words nearby optical soundoptical pyrometer, optical resonator, optical rotation, optical scanner, optical scanning, optical sound, optical soundtrack, optical tooling, optical tweezers, optical wedge, optic axis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for optical soundoptical sound nounsound recorded in the form of a photographic image on cinematograph films Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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