请输入您要查询的英文单词：

　

单词 alpha particle
释义
alpha particle
noun[C]
physicsspecialized
uk
/ˈæl.fə ˌpɑː.tɪ.kəl/us
/ˈæl.fə ˌpɑːr.t̬ə.kəl/
anextremelysmallpieceofmatterwith apositiveelectricalcharge,producedwhen aradioactiveatomisbrokendown, usually in anuclearreaction
α粒子（放射性原子分裂时所产生的带正电荷的微小粒子，通常在核反应时产生）
SMART Vocabulary: related words and phrases
Physics: atoms, molecules & sub-atomic particles
  • acceptor
  • anion
  • anti-radical
  • antilepton
  • antimatter
  • antineutrino
  • elementary particle
  • hydroxyl ion
  • interatomic
  • interelectronic
  • interionic
  • intermolecular
  • intermolecularly
  • isotope
  • muon
  • neutrino
  • non-molecular
  • nucleon
  • nuclide
  • relative molecular mass
See more results »

You can also find related words, phrases, and synonyms in the topics:

Physics: radiation & radioactivity
(Definition ofalpha particlefrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

alpha particle| American Dictionary

alpha particle
noun[C]
us/ˈæl·fə ˌpɑr·t̬ɪ·kəl/
physics
a verysmallunitofmatterwith apositiveelectricalchargethat issentout by someradioactivesubstances
(Definition ofalpha particlefrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofalpha particle

alpha particle
We keep the subscript 0 upright for the nongyrotropicalphaparticlecomponent.
From theCambridge English Corpus
For frequencies less than thealphaparticlegyrofrequency, a negative energy alpha ion-cyclotron mode can interact with a positive energy proton-cyclotron mode.
From theCambridge English Corpus
Most of thealphaparticleenergy and a few of the neutron energy are deposited in the plasma during inertial time.
From theCambridge English Corpus
After the target ignition, energetic charged particles generated by thealphaparticleare expanded in the mirror field.
From theCambridge English Corpus
It provides proton, deuteron,alphaparticleand heavy ion beams of various energies to other institutions.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
When a (positive)alphaparticleapproached sufficiently close to the nucleus, it was repelled strongly enough to rebound at high angles.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Americium is commonly used in industry as both analphaparticleand low photon energy gamma radiation source.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Light elements absorb more energy of thealphaparticle, while alpha particles are reflected by heavy nuclei nearly with the same energy.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The decaying atom of plutonium-239 liberates analphaparticleand a uranium-235 nucleus.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Thealphaparticleis trapped in a potential well by the nucleus.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
One hydrogen nucleus was being knocked off by the impact of thealphaparticle, producing oxygen-17 in the process.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
A lot of this waste isalphaparticle-emitting matter from the decay chains of uranium and thorium.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Upon inspecting the zinc sulfide screen under a microscope, he noticed separate flashes of light created by individualalphaparticlecollisions with the screen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
It then undergoes fission producing a gamma ray, analphaparticle, and a lithium ion.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
He turned to aluminium, which emitted analphaparticleand produced sodium, which then decayed into magnesium by beta particle emission.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/alpha-particle##
随便看

　

英汉双解词典包含207842条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2025/2/13 4:55:12