час спостереження
aerodrome meteorological observing systems study group
space-based observing system
observing ammunition
observing angle
observing detail
observing line
observing point
observing sector
observing station
contour interval
interval
interval of grid lines
logistical lag interval
service interval
burst range / interval
time interval
time-interval apparatus
group repetition interval (GRI)
maintenance interval
mean and sidereal time interval
predicting interval
reflection interval
noncombat interval
calculation interval
salvo interval
loading interval
close interval
firing interval
grid interval
pulse repetition interval (PRI)
deploying interval
ration interval