observed fire | (n) fire for which the point of impact (the burst) can be seen by an observer; fire can be adjusted on the basis of the observations |
unobserved fire | (n) fire for which the point of impact (the bursts) cannot be observed |
observed fire | (n) fire for which the point of impact (the burst) can be seen by an observer; fire can be adjusted on the basis of the observations |
unobserved fire | (n) fire for which the point of impact (the bursts) cannot be observed |