英语词汇“f layer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	f layer
释义	F layer [ ef-ley-er ] / ˈɛf ˌleɪ ər / noun Physics. the highest of the radio-reflective layers of the ionosphere, beginning at an altitude of about 80 miles (130 km) and consisting of two parts, the lower part (F1 layer ) being detectable in the daytime only, the higher (F2 layer, or Appleton layer ) being constant and constituting the ionospheric layer most favorable for long-range radio communication. Origin of F layer First recorded in 1925–30 Words nearby F layer flaxen, flax kit, Flaxman, flaxseed, flay, F layer, flaysome, F.L.B., fld., fl. dr., fldxt Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for F layer F layer See F region. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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F layer