| 单词 | back bias | 
| 释义 | back bias [`bak ´bī·ǝs]  ELECTRONICS 1. Degenerative or regenerative voltage which is fed back to circuits before its originating point; usually applied to a control anode of a tube or other device.  2. Voltage applied to a grid of a tube (or tubes) or electrode of another device to reduce a condition which has been upset by some external cause.  | 
	
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