| 单词 | corona discharge |
| 释义 | corona dischargenoun Electricity.a discharge, frequently luminous, at the surface of a conductor or between two conductors of the same transmission line, accompanied by ionization of the surrounding atmosphere and often by a power loss. Also called corona, electric glow, St. Elmo's fire. Compare brush discharge. Origin of corona dischargeFirst recorded in 1915–20 Words nearby corona dischargeCoromuel, corona, Corona Australis, Corona Borealis, coronach, corona discharge, Coronado, Coronado, Francisco, corona glandis, coronagraph, coronal Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for corona dischargecorona discharge nounan electrical discharge appearing on and around the surface of a charged conductor, caused by ionization of the surrounding gasAlso called: corona See also Saint Elmo's fire 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 Scientific definitions for corona dischargecorona discharge An electrical discharge characterized by a corona, occurring when one of two conducting surfaces (such as electrodes) of differing voltages has a pointed shape, resulting in a highly concentrated electric field at its tip that ionizes the air (or other gas) around it. Corona discharge can result in power loss in the transmission of electric power, and is used in photocopying machines and air-purification devices. See also electric arc. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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