(магнітний) азимут основного напрямку
magnetic liquid compass / wet compass
base junction; rotary collector ring (box); rotary base junction (of a tank); rotary connection; slip ring; traverse rotary base junction
defense industrial base / military-industrial base
naval base; naval operating base
compass bearing
compass case
compass direction
compass error
compass heading
compass march
compass north
compass rose (wind rose)
gyromagnetic compass
lensatic compass
adjusted compass
compass data
individual compass error
compass variation
gyro flux(-)gate compass
gyro stabilized flux(-)gate compass
gyro-compass / gyro-unit
gyromagnetic compass system
gyro-unit / gyro-compass
radio compass
sighting compass
compass
jumper-stay compass
watch compass
hand bearing compass
magnetic compass
compass problem
night compass problem