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单词 θ214397
释义
society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > parts of wheels > tooth > series or set of (3)
ratchet1659

A series of angular teeth on the edge of a bar, the rim of a wheel, etc., into which a cog, tooth, pawl or similar part may engage, typically in…

cog1712

Short for. The series of cogs round a wheel (obsolete).

ratch1721

= ratchet, n.2 2.

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