| 单词 | cogwheel |
| 释义 | cogwheel (once / 60612 pages) n WORD FAMILY cogwheel: cogwheels USAGE EXAMPLESIt seemed fitting to end with the world’s steepest cogwheel railway up Mount Pilatus near Lucerne. New York Times(Oct 11, 2016) To turn off Yahoo Mail’s preview pane, click the cogwheel in the top right corner, and select Settings. The Guardian(Sep 22, 2016) The cogwheel of the Bradbury elevator was heard snapping into action, and Davis set off to perform again. The New Yorker(Nov 12, 2015) n a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion Syn|Hypo|Hyper gear, gear wheel, 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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