| 释义 |
grid declination
grid declination n (Physical Geography) the angular difference between true north and grid north on a map grid declination
grid declination[′grid ‚dek·lə¦nā·shən] (navigation) In grid navigation, the angular difference in direction between grid north and true north; it is measured east or west from true north. Also known as declination of grid north; grid convergence. |