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Comptometer
[kɒmp'tɒmitә]
例句/造句/用法:
The
Comptometer
used
in
banks
is
a
species
of
typewriter
,
as
is
also
the
Dudley
adding
and
subtracting
machine
,
known
as
the
Numerograph,
and
covered
by
patents
Nos.
Edward W. Byrn.
十九世紀發明進展
.
校對:史蒂文