| 单词 | b particle |
| 释义 | B particlenoun Physics.B meson. Origin of B particleFirst recorded in 1965–70 Words nearby B particleBozen, bozo, Bozzaris, BP, B.P.A., B particle, BPC, BPD, B.P.E., B.Pet.E., BPH Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for B particleB particle Either of two subatomic particles in the meson family, one neutral and one positively charged, both of which have masses 10,331 times that of an electron and average lifetimes of 1.6 X 10-12 seconds. B particles contain bottom quarks. See Table at subatomic particle. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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