vernier
n.
device for making precise measurements, 1766, from name of inventor, French mathematician Pierre Vernier (1580-1637), who described it in 1631.
| 词汇 | vernier |
| 词根词缀 | Online Etymology Dictionary vernier n. device for making precise measurements, 1766, from name of inventor, French mathematician Pierre Vernier (1580-1637), who described it in 1631. |
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