An alteration of an electric current, electromagnetic wave, or the like by means of which information is conveyed from one place to another; such a…
| 单词 | θ198255 |
| 释义 | society > communication > telecommunication > [noun] > signal (89) signal1838 An alteration of an electric current, electromagnetic wave, or the like by means of which information is conveyed from one place to another; such a… Subcategories:— strength of (3) — reduction of variability of signal (2) — device enabling quality of signal to be varied (1) — types of (3) — conveying information by its presence or absence (2) — rendering unintelligible (7) — noise or interference (10) — distortion (3) — frequency or band of frequencies (34) — modulation (18) — approximating to discrete levels (2) — time division (1) — message detected by tapping, etc. (2) |
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