検索結果- 英語 - 英語
検索内容:
direct system
noun
direct limit
noun
(algebra)
A
set
of
equivalence
classes
which
partition
the
disjoint
union
of
the
members
of
a
direct
system;
each
equivalence
class
being
a
sort
of
“drainage
basin”
of
the
mappings
(of
the
morphisms)
of
the
direct
system,
if
these
are
analogically
considered
as
“rivers”.
(If
i<k,j<k
in
the
indexing
poset,
then
there
exist
f_ik:A_i→A_k
and
f_jk:A_j→A_k.
If
a_i∈A_i,a_j∈A_j
such
that
f_ik(a_i)=f_jk(a_j)
then
a_i∼a_j.
If
k
=
j
then
f_jj(a_j)=a_j,f_ij(a_i)=a_j.)
direct access
noun
direct registering
noun
direct response
noun
airworthiness directive
noun
(aviation,
law)
A
regulation
issued
by
the
civil
aviation
authority
of
a
country
or
region,
generally
in
response
to
the
discovery
of
an
unsafe
condition
affecting
particular
aircraft,
requiring
that
certain
actions
(such
as
specified
modifications
or
enhanced
maintenance
or
inspection
requirements)
be
performed
on
these
aircraft
in
order
for
them
to
remain
legally
airworthy.
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