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单词 proof-mark
释义

Definition of proof-mark in English:

proof-mark

noun
  • A mark stamped on a firearm to show that it has been satisfactorily tested.

Origin

Mid 18th century.

 
 

Definition of proof-mark in US English:

proof-mark

noun
  • A mark stamped on a firearm to show that it has been satisfactorily tested.

Origin

Mid 18th century.

 
 
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更新时间:2025/1/27 14:11:41