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Counterweights
[kaʊntəweɪts]
例句/造句/用法:
Weight
of
the
porter
-
bar
and
chuck
which
hold
the
plate
for
forging
is
125,000
pounds
,
exclusive
of
counterweights
used
.
佚名.
神奇的知識之書
.
汉丽埃塔整理
