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单词 working box
释义

Definition of working box in English:

working box

noun

  • Mechanics (in certain types of pump) a hollow chamber, closed with a valve, which is moved to and fro inside a cylinder in the manner of a piston (now historical).

Origin

Late 18th century.

 
 

Definition of working box in US English:

working box

noun

  • Mechanics (in certain types of pump) a hollow chamber, closed with a valve, which is moved to and fro inside a cylinder in the manner of a piston (now historical).

Origin

Late 18th century.

 
 
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更新时间：2024/12/23 8:48:48