| 单词 | needle file | 
| 释义 | Definition of needle file in English:needle filenoun 
 OriginLate 19th century; earliest use found in Edward H. Knight (1824–1883), patent lawyer and expert in mechanics. Definition of needle file in US English:needle filenoun 
 OriginLate 19th century; earliest use found in Edward H. Knight (1824–1883), patent lawyer and expert in mechanics.  | 
	
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