ізогіпса
contour line (contour)
index contour line (cart.)
intermediate contour line
deployment line; line of deployment (LD); line of departure
adjacent contour
contour
contour interval
depth contour
supplementary contour
barrel contour
Functional Hardware and Software Contour (FHSC)
wing contour
contour chart
contour flying
contour search
approximate contour
terrain contour matching (TERCOM, TERRCOM)
depression contour
observer-target line (OT line)
scheme trail line (tag line)
armistice demarcation line
beyond line-of-sight (BLOS)
bulk distribution line
cease-fire line (CFL)
combat outpost line
confrontation line
contact line
contamination control line
county line
defensive belt / line
delivery line (pipeline)
demarcation line