| 词汇 | example_english_dust-particle |
| 释义 | dust particlecollocation in Englishmeanings of dustand particleThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with dust or particle. dust noun[U] uk /dʌst/ us /dʌst/ dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces of soil, sand, or ... See more at dust particle noun uk /ˈpɑː.tɪ.kəl/ us /ˈpɑːr.t̬ə.kəl/ a word or a part of a word that has a grammatical purpose but often has little or ... See more at particle Examples of dust particleThese 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. However, the chargeto-mass ratio of a dustparticle can take any value. In most of these works, the charges on the dustparticle were taken to be fixed. The non-uniform electric field induces the charge on the surface of the dustparticle. Therefore, in equilibrium there is a balance of forces on a dustparticle: an inward electrostatic force and an outward ion drag force. Again the dustparticle has zero charge when it is levitated into the sheath and becomes charged due to the attachment of electrons. One now needs to add the repulsive force related to the momentum taken by the neutrals leaving the dustparticle to the attractive force. The saturation is provided by an interplay between dustparticle trapping and dust charging. Then a complete picture will emerge, and a confident prediction of the charge acquired by a dustparticle in different circumstances will become possible. Since the charged particles recombine on the dust-particle surface, they can finally leave the dust particles as neutrals. Correspondingly, the net force on the dustparticle decreases to sustain its equilibrium nature within the sheath. The induced charge of a spherical conducting dustparticle on a plasmafacing wall is studied analytically. The results are useful for analyzing the shielding effects of the plasma surrounding a dustparticle. Neither of these two theories includes the charging of the dustparticle. We note that = 1 represents no dustparticle present in the plasma, but > 1 represents the presence of negatively charged dust particles in the background. In this study, we investigate analytically the charge formation of a spherical conducting dustparticle on a plasma-facing wall. When two dust particles are close to each other, one of the dust particles shields the bombardment from the side of the other dustparticle. It accounts for the absorption of electrons at the probe (or dustparticle). Let r be the distance from the dustparticle. It is not difficult to calculate the gas flux on a single dustparticle. 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. Want to learn more? Go to the definition of dust Go to the definition of particle See other collocations with dust See other collocations with particle |
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