单词	low frequency
释义	low frequency noun : a radio frequency between medium frequency and very low frequency see Radio Frequencies Table Example Sentences Recent Examples on the Web In one such study, researchers used the antenna array to heat a part of the ionosphere that in turn acted as a low frequency antenna that could send an ocean-penetrating signal to a submarine. Ned Rozell, Anchorage Daily News, 10 Sep. 2022 Applying the same specialized alternating current to the parietal cortex, farther back in the brain at a low frequency improved just their short-term memory. Karen Weintraub, USA TODAY, 23 Aug. 2022 These ultralight noise-canceling sports earbuds block out low frequency noise by up to 95%. Karla Pope, Woman's Day, 11 Aug. 2022 This is reflected in the relatively low frequency of flights to/from Oslo compared with Copenhagen and Stockholm. David Nikel, Forbes, 11 Nov. 2021 That smaller number matches up with a couple of other studies of children, which found relatively low frequency of lasting side effects. Andy Larsen, The Salt Lake Tribune, 24 July 2021 Despite their low frequency, these waves could be captured by a radio telescope—if our atmosphere wasn’t in the way. Chris Wright, Wired, 15 June 2021 During the third Venus flyby, Parker Solar Probe's FIELDS instrument, which measures electric and magnetic fields in the sun's atmosphere, detected a natural radio signal at a low frequency. Ashley Strickland, CNN, 4 May 2021 Early last month, the bass player group welcomed additional low frequency instruments. Diane Bell Columnist, San Diego Union-Tribune, 4 Nov. 2020 See More Word History First Known Use 1937, in the meaning defined above
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