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f region
volume_up
f region
English
Noun
the
highest
region
of
the
ionosphere
(from
90
to
600
miles
up)
which
contains
the
highest
concentration
of
free
electrons
and
is
most
useful
for
long-range
radio
transmission
volume_up
Samples
Nearby
f number
f layer
f region
f. d. roosevelt
f. g. banting
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