单词	Napier's bones
释义	Napier's bones noun Na·​pi·​er's bones ˈnā-pē-ərz-  : a set of graduated rods (as of wood or bone) invented by John Napier and used for multiplication and division based on the principles of logarithms Word History First Known Use 1646, in the meaning defined above
随便看	tetryl tetryls tets tetter tettered tettering tetters tetterwort tetterworts Tettigellidae Tettigidae tettigoniid Tettigoniidae tettigoniidaes tettigoniides tettigoniids Tettix tettixes tetuán Tetzel teu teuchters teucria Teucrium teucriums

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