最終更新日：2022/12/07
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(engineering, countable) One of the simple machines; a sheave, a wheel with a grooved rim, in which a pulled rope or chain lifts an object (more useful when two or more pulleys are used together, as in a block and tackle arrangement, such that a small force moving through a greater distance can exert a larger force through a smaller distance).
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pulley
noun
(engineering,
countable)
One
of
the
simple
machines;
a
sheave,
a
wheel
with
a
grooved
rim,
in
which
a
pulled
rope
or
chain
lifts
an
object
(more
useful
when
two
or
more
pulleys
are
used
together,
as
in
a
block
and
tackle
arrangement,
such
that
a
small
force
moving
through
a
greater
distance
can
exert
a
larger
force
through
a
smaller
distance).
意味（1）
(engineering,
countable)
One
of
the
simple
machines;
a
sheave,
a
wheel
with
a
grooved
rim,
in
which
a
pulled
rope
or
chain
lifts
an
object
(more
useful
when
two
or
more
pulleys
are
used
together,
as
in
a
block
and
tackle
arrangement,
such
that
a
small
force
moving
through
a
greater
distance
can
exert
a
larger
force
through
a
smaller
distance).
