A small cog or spur wheel, the teeth of which engage with those of a larger cog or a rack (rack, n.4 5). Also: a spindle or axle having cogs or…
| 单词 | θ214357 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > cog or gear > small (2) pinion1659 A small cog or spur wheel, the teeth of which engage with those of a larger cog or a rack (rack, n.4 5). Also: a spindle or axle having cogs or… spur-nut1803 a small spur-wheel. |
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