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单词 grivation
释义

grivation


grivation

(ɡrɪˈveɪʃən) n (Navigation) nautical short for grid variation

grivation

See: grid magnetic angle.

grivation


grivation

The angular difference between grid north and magnetic north. It is measured east or west from grid north and is also called grid variation and grid magnetic angle. See grid variation
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