sound and flash battalion

sound and flash grenade

sound ranging (artillery sound ranging)

stun grenade / flash grenade / flashbang / thunderflash / sound bomb

sound-flash survey

sound-flash grenade

flash to bang / flash-to-bang (time)

flash-ranging (location), flash-spotting

Siberian Battalion (SB) / Sibir Battalion

sonar (sound navigation and ranging)

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

smoke and flash defilade

flash and blast stun grenade

flash and blast stun grenade

repair and refitting battalion

headquarters and headquarters battalion (HHBN)

headquarters and service battalion

battalion plans and training officer

command and control battalion

cannon battalion command and control system

radio broadcasting and leaflet battalion

clicking sound

communications by sound

high-intensity sound

sound communication

sound wave

sound-absorbent tile

artillery sound reconnaissance

supersonic speed (exceeds speed of sound / Mach 1)

sound damping

aerial sound ranging

air registration point (in sound ranging)

high-frequency sound waves