英语词汇“bell purchase”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	bell purchase
释义	WordReference Random House Unabridged Dictionary of American English © 2024 Bell′ pur′chase, Mechanicsa tackle consisting of two standing single blocks, two running single blocks, a fall, and a runner, so arranged that it gives a mechanical advantage of six, neglecting friction. `Also, Bell's′ pur′chase.`
随便看	m.s m's m.s.a. m.s.a.e. m.s.a.m. m.s.arch. msat m.s.b.a. m.s.b.c. m.s.bus. m.sc. msc m.sc.d. m.s.c.e. m.s.ch.e. m.sc.med. m.s.cons. m.s.c.p. msd m.s.dent. ms dos ms-dos m.s.e. m/sec msec

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