单词	dipole
释义	dipole noun di·​pole ˈdī-ˌpōl  1 a : a pair of equal and opposite electric charges or magnetic poles of opposite sign separated especially by a small distance b : a body or system (such as a molecule) having such charges or poles 2 : a radio antenna consisting of two horizontal rods in line with each other with their ends slightly separated dipolar ˈdī-ˌpō-lər  ˌdī-ˈpō- adjective Example Sentences Recent Examples on the Web The changes in trade wind strength can therefore result in the formation of tropical ocean dipoles. Jennifer Fitchett, Quartz Africa, 16 Feb. 2020 Earlier results have shown that the fine structure is slightly different along a specific axis of the Universe, called a dipole. Chris Lee, Ars Technica, 28 Apr. 2020 The 2019 to 2020 dipole has been unusually strong, with a temperature differential of 2°C. Jennifer Fitchett, Quartz Africa, 16 Feb. 2020 Scott: The magnetic dipoles tried to orient according to the field, but—Joyce: No, no, no. Rhett Allain, WIRED, 9 Aug. 2019 This dipole cycles between these extremes over three to five year periods, ordinarily with a 1°C difference in sea surface temperature. Jennifer Fitchett, Quartz Africa, 16 Feb. 2020 The dipole is defined by positive and negative sea surface temperature variations. Peter Fimrite, SFChronicle.com, 10 Jan. 2020 The Van Allen Probes are retired, but a subsequent instrument, the DSX dipole antenna, will explore the radiation belts and beam very low frequency (VLF) radio waves into them to see what happens. Caroline Delbert, Popular Mechanics, 27 Dec. 2019 This dipole model has two other problems, said Rubin and Heitlauf. Quanta Magazine, 17 Dec. 2019 See More Word History Etymology International Scientific Vocabulary First Known Use 1912, in the meaning defined at sense 1a Phrases Containing dipole dipole moment dipole moment Medical Definition dipole noun di·​pole ˈdī-ˌpōl  1 : a pair of equal and opposite electric charges or magnetic poles of opposite sign separated by a small distance 2 : a body or system (as a molecule) having such charges
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