Tra từ E region - Từ điển Oxford Learners Wordfinder Dictionary

Từ điển Oxford Learners Wordfinder Dictionary

E region

noun

a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length
• Syn:
Heaviside layer, Kennelly-Heaviside layer, E layer
• Instance Hypernyms:
region, part
• Part Holonyms:
ionosphere