Used attributively to designate concepts proposed by Heaviside; esp. Heaviside layer, an ionized layer in the upper atmosphere able to reflect long…
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| 单词 | θ76144 |
| 释义 | the world > matter > physics > electromagnetic radiation > radio wave > [noun] > layer reflecting long or waves (4) Heaviside layer1911 Used attributively to designate concepts proposed by Heaviside; esp. Heaviside layer, an ionized layer in the upper atmosphere able to reflect long… E-layer1930 Physics. In form E. Denoting a stratum of the ionosphere extending from approximately 90 kilometres to 150 kilometres above the surface of the… sporadic E1937 sporadic E-layer, sporadic-region: a discontinuous region of ionization that occurs from time to time in the E-layer of the ionosphere and results… sporadic E-layer1937 sporadic E-layer, sporadic-region: a discontinuous region of ionization that occurs from time to time in the E-layer of the ionosphere and results… |
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