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The propanedinitrile is synthesised from ethyl cyanoacetate by amination and elimination reaction.是什么意思?
The propanedinitrile is synthesised from ethyl cyanoacetate by amination and elimination reaction.
由氰乙酸乙酯与氨反应生成氰乙酰胺,再经过消除反应制得丙二腈.
相关词汇
the
is
from
ethyl
by
amination
and
elimination
reaction
the
art. 指已提到的人(物),指说话人与听者已知的人(物),用于独一无二的事物前,与形容词最高级和序数词连用;
例句
He did have a real knowledge of
the
country...
他对该国的确知之甚多。
is
vt.& vi. 是(be的三单形式;n. 存在;
例句
Bollinger 'RD'
is
a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。
from
prep. (表示时间)从…,(表示原因)因为,(表示来源)来自…,(表示分离)与…分离[隔开];
例句
...an abortive attempt to prevent the current President
from
taking office.
企图阻止现任总统连任的失败尝试
ethyl
n. 乙荃,乙烷基,乙基;
例句
In benzene or
ethyl
acetate solution rates increase linearly with methyl methacrylate concentration.
在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大.
by
prep. 在…旁边,表示方式,由于,经过;adv. 经过,表示保留或保存时用,短暂拜访;
例句
...expensive make-up that we saw being advertised
by
a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品
amination
氨基化,胺化,胺化作用;
例句
METHODS: The target compound was prepared by the bromination and
amination
reaction.
方法: 用溴代及胺化反应合成了四甲基吡嗪衍生物.
and
conj. 和,与,而且,于是,然后,因此;
例句
I spend a lot on expensive jewelry
and
clothing...
我花很多钱购买昂贵的首饰和衣服。
elimination
n. 排除,除去,根除,淘汰;
例句
It is already possible to start moving toward the
elimination
of nuclear weapons...
已有可能朝着消除核武器的目标努力。
reaction
n. 反应,反作用力,反动,保守;
例句
When Chappel approached me about the job, my first
reaction
was of disbelief...
当查普尔为这份工作找我商量时,我的第一反应是不相信。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿,听我陈述解雇他的理由。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
Nothing to be got without pains but poverty.
一份耕耘,一份收获。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时,可以向商业票据的背书人要求支付的权力。
Supporters of the death penalty argue that it would deter criminals from carrying guns...
死刑的支持者认为它能阻吓罪犯携带枪支。
相关例句
This will put a premium on fraud.
这会助长欺诈歪风.
I'm giving him a B minus.
我准备给他一个B—。
Visibility was down to 25 yards.
能见度降至25 码。
...a gala evening at the Royal Opera House.
在皇家歌剧院举行的盛大晚会
The cold wind whistled past.
寒风嗖嗖吹过。
pressing for eight planes rather than six
竭力要求八架飞机而不是六架
Seen here is chronic endometritis with lymphocytes and plasma cells in the endometrial stroma.
子宫内膜慢性炎症伴淋巴细胞和浆细胞浸润.
They emphasised that their equipment was for peaceful and not military purposes.
他们强调他们的设备用于和平而非战争目的。
The simulation of a continuous fermenter process also shows that the controller is valid.
连续发酵过程的仿真结果也验证了控制器是有效的.
The biggest star perk, and the biggest power trip, must be the private plane.
顶级的明星待遇和无上的权力体验肯定要数私人飞机了。
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阻止不使前进
最新汉译英
emotion
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女情人
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至好
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