emission
noun
ɪˈmɪʃən
noun
1
a
gas
or
other
substance
that
is
sent
into
the
air
排放物，散发物
C usually plural 一般用复数
Britain
agreed
to
cut
emissions
of
nitrogen
oxide
from
power
stations.
英国同意减少发电站氧化氮的排放量。
2
the
act
of
sending
out
light,
heat,
gas
etc
〔光、热、气等的〕散发，排放
U