| 单词 | negative-impedance repeater | 
| 释义 | negative-impedance repeater [`neg·ǝd·iv im¦pēd·ǝns ri`pēd·ǝr]  ELECTRONICS A telephone repeater that provides an effective gain for voice-frequency signals by insertion into the line of a negative impedance that cancels out line impedances responsible for transmission losses.  | 
	
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