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EBooks(電子書)
Ems
[emz]
例句/造句/用法:
Operated
by
a
single
person
,
the
Mergenthaler produces
and
assembles linotypes
ready
for
the
press
or
stereotyping
table
at
the
rate
of
from
3,600
to
7,000
ems
(
type
characters
)
per
hour
.
威廉·亨利·杜利特.
世紀發明
.
校對:莎娜
