| 单词 | Kennelly-Heaviside layer |
| 释义 | Kennelly-Heaviside layer (once / 1074483 pages) n WORD FAMILY Kennelly-Heaviside layer n a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length Syn|Exp E layer, E region, Heaviside layer part, region the extended spatial location of something |
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