单词 | disc wheel |
释义 | > as lemmasdisc wheel disc wheel n. (a) a gear arrangement in which a spur gear is driven by a spiral thread on the face of a disc (now rare); (b) a wheel in the form of a solid disc (now used chiefly on bicycles), as opposed to one with spokes. ΚΠ 1868 H. T. Brown Five Hundred & Seven Mech. Movements 13 The spiral thread of the disk-wheel drives the spur-gear, moving it the distance of one tooth at every revolution. 1919 Pop. Sci. July 37 (caption) Note the clean-cut appearance that the disk wheel gives to a car. 1932 Pop. Mech. Oct. 546/1 The apparatus which makes metal appear soft consists of a disk wheel driven through gears by an electric motor. 1994 L. Hall Insight into Steam 22/1 The spokes [of the main driving wheel] are so heavily ‘gusseted’ that the result is almost a disc wheel. 2007 Procycling June 110/2 (advt.) Ever wish for the benefits of a disc wheel during a lone breakaway attempt? < as lemmas |
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