| 单词 | field emission |
| 释义 | field emissionnoun Physics.the removal of electrons from a metallic conductor by a strong electric field. Origin of field emissionFirst recorded in 1925–30 Words nearby field emissionfield current, field day, field dependence, field drain, field-effect transistor, field emission, field-emission microscope, fielder, fielder's choice, field event, field exercise Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for field emissionfield emission nounthe emission of electrons from a solid or liquid subjected to a high electric field 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 field emissionfield emission The emission of electrons from the surface of a conductor, caused by a strong electric field. Field emission is used to create electron beams in certain electron microscopes, as well as in flat-panel computer and television displays, in which the electron beams produce light by striking a phosphor-coated screen. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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