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sonar
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來源 : pydict
sonar definition
a
measuring
instrument
that
sends
out
an
acoustic
pulse
in
water
and
measures
distances
in
terms
of
the
time
for
the
echo
of
the
pulse
to
return
examples:
sonar
is
an
acronym
for
sound
navigation
ranging
examples:
asdic
is
an
acronym
for
antisubmarine
detection
investigation
committee
來源 : wordnet
來源 : Trending