单词 | E layer |
释义 | E layer (once / 5909656 pages) n WORD FAMILY E layer USAGE EXAMPLESThe lowest layer where this can happen is known as the E layer, which is 60 to 70 miles up into our atmosphere. Salon(May 23, 2014) n a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length Syn|Exp E region, Heaviside layer, Kennelly-Heaviside layer part, region the extended spatial location of something |
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