In plural with the. The medium of transmission of radio or television signals; airborne radio waves. Also (in singular): a radio channel (cf. airway…
| 单词 | θ197406 |
| 释义 | society > communication > broadcasting > television > transmitting or receiving apparatus > [noun] > medium of transmission (1) air waves1924 In plural with the. The medium of transmission of radio or television signals; airborne radio waves. Also (in singular): a radio channel (cf. airway… |
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