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单词 pulling jack
释义

Definition of pulling jack in English:

pulling jack

noun
  • A hydraulic device designed to lift or pull heavy weights.

Origin

Late 19th century; earliest use found in Edward H. Knight (1824–1883), patent lawyer and expert in mechanics.

 
 

Definition of pulling jack in US English:

pulling jack

noun
  • A hydraulic device designed to lift or pull heavy weights.

Origin

Late 19th century; earliest use found in Edward H. Knight (1824–1883), patent lawyer and expert in mechanics.

 
 
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更新时间:2024/12/24 0:59:26