дирекційний кут
grid zone / grid-zone
grid zone designation / Grid Zone Designator
JAN grid / Joint Army-Navy grid
grid course
bearing grid angle
grid magnetic angle
grid bearing angle
grid-magnetic angle
grid-north angle
clock-course angle
lead-angle course
tank course firing angle
blind angle / dead angle
Global Information Grid (GIG)
grid
grid azimuth
grid bearing
grid convergence
grid convergence factor
grid coordinate system
grid coordinates
grid interval
grid line
grid north (GN)
grid note
grid reference
grid reference box
grid reference system
grid system of communications
grid variation
interval of grid lines
map grid