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
3-Jaws indexing spacers
active indexing investment
AFP conversion and indexing facility
arc face indexing cam mechanism
Arc surfaced indexing cam
Arc surfaced indexing cam mechanism