suction
noun
ˈsʌkʃən
noun
1
the
process
of
removing
air
or
liquid
from
an
enclosed
space
so
that
another
substance
is
sucked
in,
or
so
that
two
surfaces
stick
together
〔对空气或液体的〕吸，抽吸，吸出
My
vacuum
cleaner
has
very
good
suction.
我的吸尘器吸力很强。
a
suction
pump
抽吸泵
2
the
force
that
causes
a
substance
to
be
sucked
into
a
closed
space
when
the
air
or
liquid
already
present
is
removed
〔由真空状态等产生的〕吸力