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EBooks(电子书)
Earths
[ə:θs]
Examples
The
try
everything
spirit
of
Edison
'
s
method
is
well
illustrated
in
this
early
period
by
a
series
of
about
sixteen
hundred
resistance
tests
of
various
ores
,
minerals
,
earths
,
etc
.
Frank Lewis Dyer.
Edison, His Life and Inventions
.
Inputed by Elvira