| 词汇 | quark |
| 释义 | quark noun[ C ] uk /kwɑːk/ us /kwɑːrk/ quarknoun[C] (PHYSICS)physics specialized one of the most basic forms of matter that make up the heavier elementary particles: 夸克 Atoms are made up of smaller particles - protons, neutrons and electrons - some of which are made up of even smaller ones, called quarks.原子是由更小的粒子，即质子、中子和电子组成的，其中有些是由更小的叫做夸克的粒子构成的。 Physics: atoms, molecules & sub-atomic particles acceptor alpha particle anti-radical antilepton antimatter antineutrino benzene ring beta decay beta particle hadron Higgs boson interatomic interelectronic interionic molecularly monatomic multi-molecular multiparticle muon positron quarknoun[C] (FOOD)a type of soft white cheese（一种软质白色奶酪）夸克奶酪 Cheese American cheese Asiago blue cheese Brie burrata cottage cheese cream cheese crowdie curd cheese Double Gloucester Havarti jack cheese Limburger manchego mascarpone queso blanco raclette Reblochon ricotta Romano quark | American Dictionaryquark noun[ C ] us/kwɑrk, kwɔrk/ physics one of the most basic forms of matter that make up atoms Examples of quarkquark Until a few years ago, it was believed that some experiments showed the existence of "pentaquarks" exotic baryons made of four quarks and one antiquark. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Baryons, along with mesons, are hadrons, meaning they are particles composed of quarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Mesons are part of the hadron particle family, defined simply as particles composed of quarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The phenomenon of uncertainty takes a quizzical glimpse at quarks and a world in constant flux. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One simple solution exists: if at least one of the quarks of the standard model is massless, becomes unobservable; i.e. it vanishes from the theory. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, the sum of the quarks' spin was expected to be equal to the proton's spin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Physicists expected that the quarks carry all the proton spin. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They are baryons containing no up or down quarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Protons carry quarks, but the electroweak theory was concerned only with the electrons and neutrinos, with nothing postulated about quarks. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sea quarks are much less stable than their valence counterparts, and they typically annihilate each other within the interior of the hadron. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Studies of heavier quarks are conducted in artificially created conditions, such as in particle accelerators. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the supersymmetry theory of particle physics, ordinary quarks and leptons have scalar partners that carry baryon and lepton numbers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. His calculation showed that these contributions lead to an interaction between light quarks at low energies not present in the normal theory. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Via quantum theory, protons and neutrons were found to contain quarksup quarks and down quarksnow considered elementary particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In these, gluons that bind quarks together confer most of the particle mass. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of quark 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. |
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