英语词汇“helical rack”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	helical rack
释义	WordReference Random House Unabridged Dictionary of American English © 2024 hel′ical rack′, Mechanical Engineeringa rack having teeth set at an oblique angle to the edges. Cf. rack¹ (def. 5).
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