sprocket
/ˈsprɒkɪt/ (bre, ipa) · /ˈsprɑːkɪt/ (ame, ipa) · /ˈsprä-kət/ (ame, mw)
sprocket — 名詞
- sprocketsingular
- sprocketsplural
1. A circular metal wheel with pointed parts around its edge that fit into a chain
鏈輪
邊緣有齒的金屬圓輪
A circular metal wheel with pointed parts around its edge that fit into a chain or the perforated edge of film, causing it to move.
The mechanic inspected the bicycle's rear sprocket and noticed that two teeth had broken off after years of use.
技師檢查了自行車的後鏈輪，發現使用多年後有兩齒斷裂。
noun phrase: rear sprocket
Diego replaced the worn sprocket on his mountain bike with a new one that had sharper teeth for better grip.
Diego 將登山車上磨損的鏈輪換成一個齒更銳利的新鏈輪，以增加抓力。
Inside the old projector, a small sprocket pulled the film forward frame by frame without tearing it.
在老舊投影機內部，一個小鏈輪一格一格地拉動膠卷前進，不會撕破底片。
When the chain slipped off the sprocket during the race, Omar had to stop and put it back in place.
比賽中鏈條從鏈輪上滑落時，Omar 不得不停下來重新裝好。
Without a properly fitting sprocket, the chain cannot turn the wheel and the bicycle will not move at all.
如果沒有安裝合適的鏈輪，鏈條就無法帶動車輪，腳踏車根本無法前進。
- chainwheel
Less common term; usually refers specifically to a bicycle sprocket attached to the pedals
- cogwheel
More general term for any toothed wheel, but often implies gear-to-gear contact rather than chain contact
用法筆記
A sprocket is always paired with either a chain (on a bicycle or machine) or perforated material (on a film projector).
常見錯誤
2. One of the pointed projections that stick out from the edge of a sprocket wheel
齒；棘齒
鏈輪或齒輪邊緣的尖齒
One of the pointed projections that stick out from the edge of a sprocket wheel and fit into the chain links or film holes to move it.
One of the sprockets on the gear wheel had snapped off, leaving a gap where the chain could slip through.
齒輪上的一個棘齒斷了，留下一個空隙，鏈條可能會從那裡滑出去。
quantity: one of the sprockets
Nadia checked every sprocket around the wheel rim and found three that were bent inward at an odd angle.
Nadia 檢查了輪緣上的每一根棘齒，發現有三根向內彎成了奇怪的角度。
The broken sprocket snagged the perforated film and caused a small tear near the opening scene.
斷裂的棘齒鉤住了打孔膠卷，在開場鏡頭附近造成一個小撕裂。
Each sprocket on the tractor's main drive wheel must be the same size, or the chain will not stay aligned.
曳引機主驅動輪上的每一根棘齒尺寸都必須相同，否則鏈條無法保持對齊。
A single bent sprocket can make the whole chain jump off the wheel and jam the machine completely.
只要有一根棘齒彎曲，就可能讓整條鏈條跳出輪子，使機器完全卡住。
用法筆記
Distinguish from sense 1 (TOOTHED WHEEL): this sense refers to one tooth on the wheel, not the wheel itself. A sentence like 'a sprocket broke off' uses this sense; 'the sprocket turned' uses sense 1.