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单词 base circle
释义

Definition of base circle in English:

base circle

noun
Mechanics

  • The circle from which are generated the involutes forming the profiles of gear teeth, having the form of a circle concentric with the pitch circle but of slightly smaller diameter.

Origin

Early 19th century; earliest use found in American Journal of Science.

Definition of base circle in US English:

base circle

noun
Mechanics

  • The circle from which are generated the involutes forming the profiles of gear teeth, having the form of a circle concentric with the pitch circle but of slightly smaller diameter.

Origin

Early 19th century; earliest use found in American Journal of Science.
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更新时间：2026/3/10 22:26:24