单词 | sprocket |
释义 | sprocket /sprok"it/, n. 1. Mach. a. Also called chainwheel, sprocket wheel. a toothed wheel engaging with a conveyor or power chain. b. one tooth of such a wheel. 2. Carpentry. a wedge-shaped piece of wood extending a sloping roof over the eaves with a flatter pitch. [1530-40; orig. uncert.] |
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