Related topics: Technology
sprock·et /ˈsprɒkɪt $ ˈsprɑː-/ noun [countableC] 1.
(also sprocket wheel)T a wheel with teeth (=parts along the edge) that fit into and turn a bicycle chain, a photographic film with holes etc 〔自行车的〕链轮;〔电影放映机的〕带齿卷轴,带齿卷盘 2. Tone of the teeth on a sprocket wheel 链轮齿,链齿