单词 | meridian of longitude |
释义 | > as lemmasmeridian of longitude a. The angular distance of a place on the earth's surface east or west of a standard meridian (usually the Greenwich meridian); esp. in line of longitude, meridian of longitude.This distance is usually expressed in degrees and minutes, up to 180° east or west, or in units of time (15 degrees is equivalent to one hour). Cf. circle of longitude n. (b) at circle n. 2a. ΘΚΠ the world > the earth > geodetic references > [noun] > longitude longitudec1400 longtitude1578 length1581 long1693 c1400 ( G. Chaucer Treat. Astrolabe (Cambr. Dd.3.53) (1872) ii. §39. 48 The Arch of the Equinoxial that is [conteyned] or bownded by-twyxe the 2 Meridians ys cleped þe longitude of the town. a1527 R. Thorne in R. Hakluyt Divers Voy. (1582) sig. C The longitude..is counted from West to East. 1556 R. Robinson tr. T. More Utopia (ed. 2) sig. Svv I will be hable..to instructe you..in the longitude or true meridian of the ylande. 1625 N. Carpenter Geogr. Delineated i. xi. 235 Places inioying the same Longitude are not alwaies æqually distant from the first Meridian. 1725 I. Newton Let. 26 Aug. in Corr. (1977) VII. 330 The Longitude will scarce be found at sea without pursuing those methods by which it may be found at land. And those methods are hitherto only two: one by the motion of the Moon, the other by that of the innermost Satellit of Jupiter. 1754 J. Robertson Elements Navigation II. ix. x. 307 The difference between the Greenwich time and the ship's time, is the difference of longitude. 1814 J. Playfair Outl. Nat. Philos. II. i. iv. 61 The hour, as reckoned under any two meridians, is different, and the difference is proportional to the difference of longitude. 1852 H. B. Stowe Uncle Tom's Cabin I. xvi. 244 As if determined fully to ascertain her longitude and position, before she committed herself. 1878 T. H. Huxley Physiography (ed. 2) xix. 329 All lines of longitude form circles which have the earth's centre as their centre. 1918 A. H. Blanchard Amer. Highway Engineer's Handbk. v. 214 All longitudes are usually referred to the Greenwich meridian. 1935 C. J. Smith Intermediate Physics (ed. 2) v. xli. 683 The vertical plane passing through the axis of such a magnet is called the magnetic meridian, as distinct from the geographical meridian, which is the vertical plane passing through a line of longitude. 1991 One 55 (U.K. ed.) B. 13 The zero meridian of longitude passes through the Meridian Building in Greenwich. 2009 N.Y. Times (National ed.) 16 Sept. d8/3 It's a movement of [coffee] purists..and obsessives (bags of micro-lot beans are labeled with the latitude, longitude and elevation where grown). < as lemmas |
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