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词汇 piston wheel
释义

Definition of piston wheel in English:

piston wheel

noun
  • 1A wheel or rotating disc carrying at its outer margin one or more pistons.

  • 2(In a chain pump) a wheel carrying an endless chain bearing piston pumps.

Origin

Mid 19th century; earliest use found in Scientific American.

Definition of piston wheel in US English:

piston wheel

noun
  • 1A wheel or rotating disc carrying at its outer margin one or more pistons.

  • 2(In a chain pump) a wheel carrying an endless chain bearing piston pumps.

Origin

Mid 19th century; earliest use found in Scientific American.

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