| 单词 | second-mark |
| 释义 | > as lemmassecond-mark second-mark n. (also seconds-mark) Mathematics the character ″, denoting a second or seconds (either of angle or of time). ΘΚΠ the world > relative properties > number > mathematical notation or symbol > [noun] > collection or sequence of > other vinculum1710 nabla1870 sign of inequality1875 second-mark1888 placeholder1928 tilde1958 1888 C. T. Jacobi Printers' Vocab. 121 Seconds mark, a double acute accent is used for this purpose, thus ˝. < as lemmas |
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