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单词 rag pump
释义

Definition of rag pump in English:

rag pump

noun ˈraɡ pʌmp
Mining historical
  • A chain-pump driven by a rag wheel.

Origin

Mid 18th century. From rag + pump.

Definition of rag pump in US English:

rag pump

nounˈraɡ pʌmp
Mining historical
  • A chain-pump driven by a rag wheel.

Origin

Mid 18th century. From rag + pump.

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更新时间:2024/12/27 17:41:47