reflection wave sound vector / echo and sonar concept
Palabras clave
wave,
sound,
echo,
sonar,
reflect,
diagram,
air,
angle,
listening,
radio,
principle,
emitting,
radar,
science,
hearing,
education,
demonstration,
cliff,
location,
detection,
ultrasonic,
sonic,
art,
force,
auditory,
audio,
obstacle,
vector
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