单词 | Heaviside layer |
释义 | Heaviside layer (once / 200328 pages) n WORD FAMILY Heaviside layer USAGE EXAMPLESThe pips and the signals were bright and clear, coming through the ionosphere, the Heaviside layer as they had been designed to do. Apostolides, Alex, Progress Report(2011) The signal was coming from "M-I-T-A," the Earth company's home station on the Moon, outside the Heaviside layer. Zagat, Arthur Leo, The Great Dome on Mercury(2010) They are already in operation, sending their defensive waves against the Heaviside layer. Campbell, John Wood, Invaders from the Infinite(2010) 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, Kennelly-Heaviside layer part, region the extended spatial location of something |
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