working barrel
Engineering
noun
The cylindrical chamber in which the plunger or piston of a pump moves to and fro or up and down.
Origin
Mid 18th century; earliest use found in Martin Clare (d. 1751).
| 单词 | working barrel |
| 释义 | working barrelEngineering noun The cylindrical chamber in which the plunger or piston of a pump moves to and fro or up and down. Origin |
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