释义 |
spotting line
spotting lineAny straight line to which the fall of shot of projectiles is related or fire is adjusted by an observer or a spotter. See also gun-target line; observer-target line.spotting line
spotting line[′späd·iŋ ‚līn] (ordnance) Either the gun-target line, the observer-target line, or a reference line used by the observer or spotter in making spot corrections. |