| 单词 | antiproton |
| 释义 | antiproton noun[C] uk/ˈæn.tiˌprəʊ.tɒn/us/ˈæn.t̬iˌproʊ.t̬ɑːn/theantiparticleof aproton 反质子Physics: atoms, molecules & sub-atomic particles
antiproton| American Dictionaryantiproton noun[C] us/ˌænt·i·ˈproʊ·tɑn,ˌæn·tɑɪ-/physics the antiparticle of aproton Examplesofantiprotonantiproton Even with the improvedantiprotonproduction and storage capacities expected soon, this amount of antimatter is beyond our reach. From theCambridge English Corpus Again assuming a three-order of magnitude improvement inantiprotonproduction efficiency, these gains are near break even in terms of net energy flow. From theCambridge English Corpus Antielectrons or positrons are difficult to store in this way, so antiprotons are stored instead. From theCambridge English Corpus For a hypothetical plasma composed of antiprotons and positrons, a potential dip would occur. From theCambridge English Corpus Currently, antiprotons can only be stored for a few weeks and production is very low, but the problems with the storage and production are engineering problems, not physical problems. From theCambridge English Corpus Iridium is used in particle physics for the production of antiprotons, a form of antimatter. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.For example, anantiprotonand a positron can form an antihydrogen atom, which has almost exactly the same properties as a hydrogen atom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Whereas the common hydrogen atom is composed of an electron and proton, the antihydrogen atom is made up of a positron andantiproton. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Several methods for the liquid-propellant thermal antimatter engine using the gamma rays produced byantiprotonor positron annihilation have been proposed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.For example, the charges of the proton andantiprotonmust sum to exactly zero. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The divergence indicates that at a low temperature hydrogen-antihydrogen will not be produced, rather proton/antiprotonand electron/antielectron. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Protons consist of two up quarks and one down quark, while antiprotons consist of two anti-ups and an anti-down. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.As a result, scientists had to develop a number of techniques for creating and handling intense beams of antiprotons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.This is inconsistent with predictions from most models of dark matter sources, in which the positron andantiprotonexcesses are correlated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Since then, several groups have studied antimatter-catalyzed micro fission/fusion engines in the lab (sometimes "antiproton" as opposed to "antimatter" or "antihydrogen"). From Wikipedia This 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. |
| 随便看 |
英汉词典包含213609条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。