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検索内容:
cirrocumulus
noun
(physics,
meteorology)
A
principal
high-level
cloud
type
appearing
as
a
thin,
white
patch
of
cloud
without
shadows,
composed
of
very
small
droplets
in
the
form
of
grains
or
ripples.
The
elements
may
be
merged
or
separate,
and
more
or
less
regularly
arranged;
they
subtend
an
angle
of
less
than
1°
when
observed
at
an
angle
of
more
than
30°
above
the
horizon.
Holes
or
rifts
often
occur
in
a
sheet
of
cirrocumulus.
Abbreviated
Cc.
