検索結果- 英語 - 英語
検索内容:
device under test
noun
A
manufactured
product
undergoing
testing,
either
at
first
manufacture
or
later
during
its
life
cycle
as
part
of
ongoing
functional
testing
and
calibration
checks,
which
can
also
include
a
test
after
reparation
to
establish
that
the
product
is
performing
in
accordance
with
the
original
product
specification.
Tan Delta test
noun
A
test
to
measure
the
degree
of
deterioration
of
an
electrical
insulation
which
is
performed
at
two
temperature
by
applying
AC
voltage
to
the
test
object
and
measure
the
total
current
flow
through
it,
and
separating
and
comparing
the
reactive
and
resistance
portions
of
the
current
passing
through
it.
day-after recall test
noun
Mann-Whitney U test
noun
(statistics)
A
nonparametric
test
of
the
null
hypothesis
that
the
probability
that
a
randomly
selected
value
from
one
population
is
less
than
a
randomly
selected
value
from
a
second
population
is
equal
to
the
probability
of
being
greater.
It
can
be
used
to
investigate
whether
two
independent
samples
were
selected
from
populations
having
the
same
distribution.