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	Definition of pitch line in English: pitch line noun Mechanics An imaginary line (often a circle) passing through the teeth of one cogwheel, pinion, rack, etc., so as to touch the corresponding line in another, without sliding, when the two components are geared together. Origin Late 18th century; earliest use found in John Imison (d. 1788), clockmaker and printer. Definition of pitch line in US English: pitch line noun Mechanics An imaginary line (often a circle) passing through the teeth of one cogwheel, pinion, rack, etc., so as to touch the corresponding line in another, without sliding, when the two components are geared together. Origin Late 18th century; earliest use found in John Imison (d. 1788), clockmaker and printer.
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更新时间：2025/1/27 14:27:59