the point of contact of the pitch lines of two cogwheels, gears, etc., which engage with each other.
| 单词 | θ214400 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > parts of wheels > tooth > imaginary line through > point of contact of (1) pitch point1859 the point of contact of the pitch lines of two cogwheels, gears, etc., which engage with each other. |
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