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单词 pulley drum
释义

Definition of pulley drum in English:

pulley drum

noun
  • A pulley in the form of a drum, especially for driving a conveyor belt.

Origin

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

 
 

Definition of pulley drum in US English:

pulley drum

noun
  • A pulley in the form of a drum, especially for driving a conveyor belt.

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 1:07:24