| 单词 | high-frequency amplification | 
| 释义 | Definition of high-frequency amplification in English:high-frequency amplificationnoun 
 OriginEarly 20th century; earliest use found in Wireless World. Definition of high-frequency amplification in US English:high-frequency amplificationnoun 
 OriginEarly 20th century; earliest use found in Wireless World.  | 
	
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