| 单词 | antenna amplifier | 
| 释义 | antenna amplifier [an`ten·ǝ `am·plǝ´fī·ǝr]  ELECTROMAGNETISM One or more stages of wide-band electronic amplification placed within or physically close to a receiving antenna to improve signal-to-noise ratio and mutually isolate various devices receiving their feed from the antenna.  | 
	
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