drop ground zone
зона скидання бомб
зона скидання бомб
zone standard time (zone time) (ZST)
grid zone designation / Grid Zone Designator
grey-zone / grey zone (international relations)
hundred-per-cent zone (one-hundred-per-cent zone)
battle-ground / battle ground / battleground
Ground Observer 12 (GO 12 Ground Surveillance Radar, нім. Bodenüberwachungsradar)