submarine feasible getting-to-firing-position zone
trade-wind zone [= zone of trade wind]
air distribution on a zone by zone basis
near zone to far zone transformation
north-south seismic zone (N-S seismic zone)
the alternative occurrence of fractured zone and non-fractured zone
Time-domain near-zone to far-zone transformation
zone by zone up-going production
zone-by-zone production testing
zone-by-zone water flooding
4 corner tangential firing
accuracy of firing data