pitch diameter
Mechanics
noun
The diameter of the pitch circle of a cogwheel, gear, etc.
Origin
Early 19th century; earliest use found in Abraham Rees (1743–1825), Presbyterian minister and encyclopaedist.
| 单词 | pitch diameter |
| 释义 | pitch diameterMechanics noun The diameter of the pitch circle of a cogwheel, gear, etc. Origin |
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