英语词汇“fast neutron”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	fast neutron
释义	fast neutron noun physics a neutron produced by nuclear fission that has lost little energy by collision; a neutron with a kinetic energy in excess of 0.1 MeV a neutron with a kinetic energy in excess of 1.5 MeV, the fission threshold of uranium-238 Words nearby fast neutron fastigium, fast lane, fast motion, fast-moving, fastness, fast neutron, Fast of Gedaliah, fast one, fast reactor, fast rhythm, fast smear 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 fast neutron fast neutron A neutron that is not in thermal equilibrium with the surrounding medium, especially one produced by fission. Compare slow neutron. See also fast-breeder reactor. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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fast neutron