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検索内容:
Harvey
name
Harvey Wallbanger
Harvey process
name
A
process
for
hardening
the
face
of
steel,
involving
the
additional
carburizing
of
the
face
of
a
piece
of
low-carbon
steel
by
heaping
a
solid
carbon-rich
fuel
(such
as
charcoal)
on
the
face
of
the
steel
and
then
subjecting
this
to
very
high
heat
at
high
pressure
for
a
prolonged
period
of
time,
followed
by
a
violent
chilling,
as
by
a
spray
of
cold
water.
This
results
in
a
thick
surface
of
extreme
hardness
supported
by
material
gradually
decreasing
in
hardness
to
the
unaltered
soft
steel
at
the
back.
Harvey Nicks
name
Harvey ball
noun
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