英语词汇“optical plummet”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	optical plummet
释义	optical plummet optical plummet A device on some transits and theodolites; used to center the instrument over a point, in place of a plumb bob, which moves in a strong wind.
随便看	tax exempt tax-exempt tax exempt bond tax-exempt bond tax exempt bonds tax-exempt bonds tax exempt commercial paper tax-exempt commercial paper tax exempt income tax-exempt income tax exempt income fund tax-exempt income fund tax exempt income funds tax-exempt income funds tax exempt incomes tax-exempt incomes tax exempt interest tax-exempt interest tax exemption tax exemptions tax exempt leasing program tax exempt money market fund tax-exempt money market fund tax exempt money market funds tax-exempt money market funds

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