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Treadles
[tredlz]
例句:
Treadles
were
subsequently
applied
,
but
after
a
time
the
machine
fell
into
disuse
and
was
apparently
forgotten
.
威廉·亨利·杜利特.
世纪发明
.
With
this
transition
in
the
sewing
machine
foot
treadles
are
no
longer
relied
on
,
but
the
machines
are
run
by
power
from
countershafts.
Edward W. Byrn.
十九世纪发明进展
.
校对:斯宾塞