| 单词 | delta ray |
| 释义 | delta raynoun Physics.a low-energy electron emitted by a substance after bombardment by higher-energy particles, as alpha particles. Origin of delta rayFirst recorded in 1905–10 Words nearby delta raydelta granule, delta hepatitis, deltaic, delta iron, delta particle, delta ray, delta rhythm, Deltasone, delta stock, Delta team, delta wave Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for delta raydelta ray nouna particle, esp an electron, ejected from matter by ionizing radiation 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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