| 单词 | eta particle |
| 释义 | eta particle[ ā′tə, ē′tə ] An electrically neutral meson having a mass 1,071 times that of the electron and a mean lifetime of approximately 3.5 X 10-8 seconds. See Table at subatomic particle. Words nearby eta particleetalon, eta meson, etamine, etanercept, etaoin shrdlu, eta particle, étape, etatism, etc., etcetera, etceteras The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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