| 单词 | ultrasonic thickness gage | 
| 释义 | ultrasonic thickness gage [¦ǝl·trǝ`sän·ik `thik·nǝs ´gāj]  ENGINEERING A thickness gage in which the time of travel of an ultrasonic beam through a sheet of material is used as a measure of the thickness of the material.  | 
	
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