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river B-climate-nature
basin I-climate-nature
runoff B-climate-nature
in O
mountainous B-climate-nature
regions O
in O
Slovakia O
was O
evaluated O
using O
a O
simulation O
of O
the O
runoff B-climate-nature
changes O
, O
carried O
out O
using O
a O
monthly O
time O
step O
. O
-DOCSTART- -X- O O ba37c4644538b08e3f16df5ea79ba4b7
One O
element O
of O
a O
large O
telescope O
corrector O
might O
be O
a O
one O
meter O
diameter B-climate-properties
asphere O
0.2 O
m O
thick B-climate-properties
and O
, O
with O
stringent O
homogeneity O
and O
surface O
requirements O
for O
the O
glass O
, O
represents O
a O
~ O
$ O
1 O
M O
investment O
. O
The O
index B-climate-properties
of I-climate-properties
refraction I-climate-properties
of O
air O
at O
sea B-climate-properties
level I-climate-properties
under O
standard O
conditions O
is O
n O
≈ O
1.003 O
. O
Depending O
upon O
the O
altitude B-climate-properties
of O
the O
observatory O
, O
telescopes O
look O
through O
~ O
100 O
km O
of O