проривати основні оборонні рубежі
exterior lines (див. interior lines)
interior lines (див. exterior lines)
assume a defensive / assume the defensive
break into
break into the networks
break into column
gunner's primary sight (GPS)
officer of primary responsibility
primary (fire) position
primary arm
primary armament
primary burn
primary control surface
primary sector of fire
primary high explosive
primary military occupational specialty (MOS)
primary mission
primary reserve
primary target
primary target line (PTL)
primary trainer
primary weapon
primary position
primary, alternate, contingency, emergency (PACE)
primary level training (PLT)
primary venturi
primary control surfaces
primary defect
primary cause
primary great circle spherical coordinate system
primary rainbow
primary runway