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c19h21no3
c19h21no3
c19h21no3
例句:
1
A
drug
,
C19H21NO3
, derived
from
morphine
,
used
to
treat
respiratory
depression
and
other
effects
of
an overdose of narcotics
.
纳洛芬
一种
药品
,
c19h21no3
,
从
吗啡
中
提炼
出来
,
用于
治疗
呼吸
压抑
和
其它
麻醉剂
过量
的
副作用
。
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man
,
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you
's
after
"
a
then
not
what
say
by
?
of
as