英语词汇“agonic line”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

agonic line

/əˈɡɒnɪk

noun

An imaginary line round the earth passing through both the north pole and the north magnetic pole, at any point on which a compass needle points to true north.Navigators on these so-called agonic lines do not need to make the usual correction to their compasses....

Extended lines that mark the constant magnetic declination away from the agonic line are called isogonic lines.
When using a compass east of the agonic line, the needle points in a direction that is west of true north.

Origin

Mid 19th century: from Greek agōnios, agōnos (from a- 'without' + gonia 'angle') + -ic.

单词	agonic line
释义	agonic line /əˈɡɒnɪk / noun An imaginary line round the earth passing through both the north pole and the north magnetic pole, at any point on which a compass needle points to true north.Navigators on these so-called agonic lines do not need to make the usual correction to their compasses.... Extended lines that mark the constant magnetic declination away from the agonic line are called isogonic lines. When using a compass east of the agonic line, the needle points in a direction that is west of true north. Origin Mid 19th century: from Greek agōnios, agōnos (from a- 'without' + gonia 'angle') + -ic.
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