英语词汇“bull wheel”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	bull wheel
释义	WordReference Random House Unabridged Dictionary of American English © 2024 bull′ wheel′, [Mach.] Mechanical Engineeringany large driving gear among smaller gears. Also called bull gear. 1820–30, American.
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