emitting a negligible quantity of radio waves; characterized by little radio emission.
| 单词 | θ1276 | 
| 释义 | the world > the universe > radio source > 			[adjective]		 (4)		 radio-quiet1959 emitting a negligible quantity of radio waves; characterized by little radio emission. radio-silent1966 (a) Astronomy = radio-quiet adj.; (b) maintaining radio silence. quiet1977 Astronomy. Of the sun, a region of it, or a part of the solar cycle: not especially active; spec. marked by the absence (or a minimal number) of… radio-loud1978 = radio-bright adj. | 
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