spec. The measurement of the altitude of the sun (or other celestial object) by means of an astronomical instrument, in order to ascertain…
单词 | θ203494 |
释义 | society > travel > travel by water > directing or managing a ship > direct or manage ship [verb (intransitive)] > work an observation or reckoning (2) to work an observation1669 spec. The measurement of the altitude of the sun (or other celestial object) by means of an astronomical instrument, in order to ascertain… to fudge a day's work1830 Nautical. to fudge a day's work: to work a dead reckoning by rapid ‘rule of thumb’ methods. |
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