英语词汇“roberval's balance”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	roberval's balance
释义	ro·ber·val's balance \ˈrōbə(r)ˌvȯlz-\ noun Usage: usually capitalized R Etymology: after Gilles Personne de Roberval died 1675 French mathematician : a balance in which the pans are fixed to the prolonged vertical sides of a jointed parallelogram whose two other sides are pivoted in their midpoints to a vertical post
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