| 单词 | magnetic course |
| 释义 | > as lemmasmagnetic course magnetic course n. a course of navigation in relation to magnetic north. ΚΠ 1804 A. Mackay Compl. Navigator iii. iii. 197 The true course is found by the common rules of navigation; and if the variation of the compass be known, the magnetic course may be obtained. 1872 W. C. Bergen Pract. Navigation & Naut. Astron. 235 At the place where the edge of the ruler cuts the curve, draw a line to represent the correct magnetic course. 1953 C. H. Cotter Elem. of Navigation xvi. 153 The magnetic course is the horizontal angle between the direction of magnetic north and the direction of the ship's head. 1994 J. Barth Once upon Time 389 I..then applied the necessary leap-year correction the wrong way, as nonprofessional navigators will sometimes miscorrect for variation between True and Magnetic courses when moving from chart to compass or vice versa. < as lemmas |
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