“odontograph”的英文意思

单词

odontograph

释义

odontograph|əʊˈdɒntəgrɑːf, -æ-|
[f. odonto- + -graph.]
An instrument, invented by Professor R. Willis, for marking or setting out the teeth of gear-wheels.
1857Rankine in Encycl. Brit. (ed. 8) XIV. 396/1 To facilitate the drawing of epicycloidal teeth in practice..Mr. Willis has published tables of ρ–c and ρ′–c, and invented an instrument called the ‘Odontograph’.1866Brande & Cox Dict. Sci., etc. s.v., Tables are given on the odontograph for finding the graduation on the scale corresponding to any given pitch and number of teeth.

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