Tra từ radio-frequency spectrum - Từ điển Oxford Learners Wordfinder Dictionary

Từ điển Oxford Learners Wordfinder Dictionary

radio-frequency spectrum

noun

the entire spectrum of electromagnetic frequencies used for communications;
includes frequencies used for radio and radar and television
• Syn:
radio spectrum
• Hypernyms:
spectrum
• Part Holonyms:
electromagnetic spectrum
• Part Meronyms:
radio wave, radio emission, radio radiation