<s>
Mostly	O
large-format	B-General_Concept
projection	I-General_Concept
(	O
or	O
large-image	O
projection	O
)	O
is	O
used	O
for	O
the	O
use	O
of	O
large-format	O
slide	O
projectors	O
or	O
extremely	O
powerful	O
video	B-Device
projectors	I-Device
for	O
producing	O
still-standing	O
or	O
dynamic	O
images	O
on	O
projection	O
areas	O
of	O
about	O
100	O
–	O
10,000	O
m2	O
and	O
more	O
.	O
</s>
<s>
Sometimes	O
the	O
use	O
of	O
slide	O
projector	O
and	O
video	B-Device
projector	I-Device
is	O
combined	O
to	O
reach	O
a	O
kind	O
of	O
"	O
picture	O
in	O
picture	O
"	O
projection	O
to	O
enable	O
larger	O
projections	O
with	O
a	O
dynamic	O
part	O
inside	O
.	O
</s>
