検索結果- 英語 - 英語
検索内容:
manograph
noun
An
optical
device
for
making
pressure
volume
diagrams
for
high-speed
engines,
involving
a
light-tight
box
or
camera
having
at
one
end
a
small
convex
mirror
reflecting
a
beam
of
light
onto
the
ground
glass
or
photographic
plate
at
the
other
end.
The
mirror
is
pivoted
so
that
it
can
be
moved
so
as
to
copy
the
motion
of
the
engine
piston
on
a
smaller
scale.
