звуковий бар'єр (про швидкість)
sonic deception
sonic detector
sonic mine
sonic speed
local sonic speed
sonic
Sonic Boom Committee
sonic boom effect
sonic line
sonic wave
altitude barrier
antisubmarine barrier
barrier materials
barrier minefield
barrier plan
barrier restricted area
barrier system
barrier troops / blocking detachments (units) / anti-retreat forces
boom barrier (boom gate)
concrete barrier
portable vehicle-arresting barrier (PVAB)
vehicle-arresting barrier
barrier inspection
crash barrier
noise barrier
barrier
gas barrier
vapor barrier boot
lateral barrier
geographic barrier
geographical barrier
radar barrier