| 单词 | synchronous vibrator | 
| 释义 | synchronous vibrator [`siŋ·krǝ·nǝs `vī´brād·ǝr]  ELECTROMAGNETISM An electromagnetic vibrator that simultaneously converts a low direct voltage to a low alternating voltage and rectifies a high alternating voltage obtained from a power transformer to which the low alternating voltage is applied; in power packs, it eliminates the need for a rectifier tube.  | 
	
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