| 单词 | nautical day |
| 释义 | > as lemmasnautical day nautical day n. now historical a day of 24 hours beginning at noon (see astronomical day n. at astronomical adj. and n. Compounds). ΘΚΠ the world > time > period > a day or twenty-four hours > [noun] > reckoned in different ways natural dayc1395 sun1491 nautical day1771 sol1976 1771 Philos. Trans. 1770 (Royal Soc.) 60 100 It must be observed, that the Astronomical, and not the Nautical Day, is everywhere to be understood in the following Journal. 1840 J. F. Cooper Mercedes of Castile Pref. p. xi The nautical day formerly commenced at meridian. 1970 Jrnl. Brit. Astron. Assoc. 80 210 The nautical day fell into disuse in the 19th century, but the astronomical day continued to be used until 1924. < as lemmas |
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