a standard of length in the form of a metal bar or block whose end faces are the standard distance apart under specified conditions; cf. line standard…
| 单词 | θ117025 |
| 释义 | the world > relative properties > measurement > measurement of length > [noun] > standard of length (2) end standard1888 a standard of length in the form of a metal bar or block whose end faces are the standard distance apart under specified conditions; cf. line standard… line standard1888 Metrology. A standard of length in the form of a metal bar on which are engraved two lines, the distance between which (under specified… |
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