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单词 tappet
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tap•pet  (tapit),USA pronunciation n. [Mach.]
  1. Mechanical Engineeringa sliding rod, intermittently struck by a cam, for moving another part, as a valve.
  • tap1 + -et 1735–45

Collins Concise English Dictionary © HarperCollins Publishers::
tappet /ˈtæpɪt/ n
  1. a mechanical part that reciprocates to receive or transmit intermittent motion, esp the part of an internal-combustion engine that transmits motion from the camshaft to the push rods or valves
Etymology: 18th Century: from tap1 + -et
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