a sound mind in a sound body
infra-audible sound (=infrasonic sound)
rate of sound and attenuation of sound
sound absorption-sound insulation-vibration isolation technology
sound intensity and sound intensity level
sound navigation and ranging or sound radar
sound pressure and pressure level of sound
change of parameters stage by stage
dividing stage of stage mass regulating
graphical stage-to-stage calculation program
last stage and penultimate stage rotor blade
one-stage and two-stage carburizing
regulating stage by stage
single stage and two stage orificings
Stage by stage characteristics