absorbţie De acord cu operator echo sonar pâlpâire nesigur Defini
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Echo sonar waves. Sound cycle pulse circular wave, pattern r
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Echo sonar waves blue radar symbol on sea Vector Image
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Bio sonar sound detect object locate. echo radar ocean system 23586793 Vector Art at Vecteezy
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What is the difference between an echo sounder and a sonar? - Quora
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An echo sounder on board a marine vessel.Echo sounding is a type of sonar used to determine the depth of water by transmitting sound pulses into water Stock Photo - Alamy