英语词汇“pitch circle”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pitch circle
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pitch′ cir′cle, [Mach.] Mechanical Engineeringan imaginary circle within the profiles of the teeth of a gear, such that it rotates against a similar circle rotating at the same rate on a meshing gear. Also called pitch line. 1810–20
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