| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024sprock•et /ˈsprɑkɪt/USA pronunciation n. [countable]- Mechanical Engineering
- a wheel having teeth on it that fit into holes on a conveyor belt or power chain.
- a tooth on such a wheel.
WordReference Random House Unabridged Dictionary of American English © 2024sprock•et (sprok′it),USA pronunciation n. - Mechanical Engineering[Mach.]
- Also called chainwheel, sprock′et wheel′. a toothed wheel engaging with a conveyor or power chain.
- one tooth of such a wheel.
- Building[Carpentry.]a wedge-shaped piece of wood extending a sloping roof over the eaves with a flatter pitch.
- origin, originally uncertain 1530–40
Collins Concise English Dictionary © HarperCollins Publishers:: sprocket /ˈsprɒkɪt/ n - Also called: sprocket wheel a relatively thin wheel having teeth projecting radially from the rim, esp one that drives or is driven by a chain
- an individual tooth on such a wheel
- a cylindrical wheel with teeth on one or both rims for pulling film through a camera or projector
- a small wedge-shaped piece of wood used to extend a roof over the eaves
Etymology: 16th Century: of unknown origin |