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单词 herringbone gear
释义

WordReference Random House Unabridged Dictionary of American English © 2024
herringbone gear′, 
  1. Mechanical Engineeringa helical gear having teeth that lie on the pitch cylinder in aV-shaped form so that one half of each tooth is on a right-handed helix and the other half on a left-handed helix. Also called double-helical gear. 

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更新时间:2025/7/22 23:42:26