| 释义 |
F region
F region n (General Physics) the highest region of the ionosphere, extending from a height of about 150 kilometres to about 1000 kilometres. It contains the highest proportion of free electrons and is the most useful region for long-range radio transmission. Also called: Appleton layer See also ionosphere Thesaurus| Noun | 1.F region - the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmissionAppleton layer, F layerionosphere - the outer region of the Earth's atmosphere; contains a high concentration of free electrons |
F region
F region[′ef ‚rē·jən] (geophysics) The general region of the ionosphere in which the F1 and F2 layers tend to form. F regionThe general region of the ionosphere in which the F1 and F2 layers tend to form. See F layer, F1 layer, and F2 layer.F region
Related to F region: F layer, E regionSynonyms for F regionnoun the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmissionSynonymsRelated Words |