Na·pi·er's bones 
(nāpē-ərz, nə-pîrz)
(nāpē-ərz, nə-pîrz)pl.n. (used with a sing. verb)
A set of graduated rods used to perform multiplication quickly.
[After John Napier.]
| 单词 | Napier's bones |
| 释义 | Na·pi·er's bones (nāpē-ərz, nə-pîrz)pl.n. (used with a sing. verb) A set of graduated rods used to perform multiplication quickly. [After John Napier.] |
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