oceanography
preferred label: اقیانوس‌شناسی @fa
type: Concept
related: hydrophone

electroacoustic transducer
preferred label: تراگذار برقاصوتی @fa
type: Concept
narrower: hydrophone

sonar
preferred label: سونار @fa
type: Concept
related: hydrophone

microphone
preferred label: صدابر @fa
type: Concept
related: hydrophone

hydrophone
related: microphone
related: sonar
related: oceanography
broader: electroacoustic transducer
preferred label: آب‌لرزه‌یاب @fa
type: Concept