英语词汇“pitch line”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 line
释义	pitch line Mach. 1. See pitch circle. 2. an imaginary line within the profiles of the teeth of a rack, such that it moves against, and at the same rate as, the pitch circle of an engaging pinion. [1790-1800]
随便看	QM q.m. QMC QMG QN q.n. QNP Qom qoph QP q.p. Q, q Qq. qq. walking delegate walking fern walking fish walking horse. walking leaf walking line walking papers walking shorts walking stick walking ticket walking wounded

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