| 单词 | gear wheel |
| 释义 | gear wheel (once / 128471 pages) n WORD FAMILY gear wheel: gear wheels USAGE EXAMPLESHe says he made the "bionic arm" from scrap metals, a lithium battery, gear wheels, dynamo cables and other electronic components. BBC(Jan 27, 2016) Nearby is a pile of found objects, mostly gear wheels and teeth from farm implements. Washington Times(Oct 18, 2015) There was an allegorical manufacturer, armed with a mallet and anvil, over whose left shoulder a gear wheel rose like the sun. New York Times(Apr 29, 2015) n a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion Syn|Hypo|Hyper cogwheel, gear, geared wheel bevel gear, pinion and crown wheel, pinion and ring gear gears that mesh at an angle escape wheelgear that engages a rocking lever piniona gear with a small number of teeth designed to mesh with a larger wheel or rack epicyclic gear, planet gear, planet wheel, planetary gearan outer gear that revolves about a central sun gear of an epicyclic train rack and piniona wheel gear (the pinion) meshes with a toothed rack; converts rotary to reciprocating motion (and vice versa) spur gear, spur wheelgear wheels that mesh in the same plane sun gearthe central gear in an epicyclic train worm geargear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion worm wheelgear with the thread of a worm differential, differential geara bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves lantern pinion, lantern wheela small pinion having cylindrical bars instead of teeth, used chiefly in inexpensive clocks wheel a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines) |
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