overall sound pressure level

overall length (length overall)

background sound pressure level

adjusted slope of sound pressure level

change in slope of sound pressure level

slope of sound pressure level

average slope of sound pressure level

final background sound pressure level

sound pressure level

sound ranging (artillery sound ranging)

overall force multiplier

Overall Summary Appraisal of Defense Planning

overall efficiency

length overall (LOA)

precision sound level meter

sound level meter

depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance

surveyor's level (surveying level, tbc)

fixed pressure level

high level pressure chart

low level pressure chart

noise pressure level

pressure level

sea level atmospheric pressure

sea level pressure

clicking sound

communications by sound

high-intensity sound

sonar (sound navigation and ranging)

sound communication

sound wave

sound-absorbent tile

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