英语词汇“biquinary abacus”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	biquinary abacus
释义	biquinary abacus biquinary abacus [bī′kwin·ə·rē ′ab·ə·kəs] (mathematics) An abacus in which the frame is divided into two parts by a bar which separates each wire into two- and five-counter segments.
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