ready reckoner

英 [ˌredi ˈrekənə(r)] 美 [ˌredi ˈrekənər]

n.  计算速查手册; 简便计算表



牛津词典

noun

  1. 计算速查手册;简便计算表
    a book or page that shows common calculations with their results, so that answers can be found quickly

    英英释义

    noun

    1. a handbook of tables used to facilitate computation

        Synonym:    reckoner