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The 1,4 dialkoxynaphthalo 2,3 dinitriles were synthesized from 1,4 naphthoquinone by bromination, cyanation and O alkylation.是什么意思?
The 1,4 dialkoxynaphthalo 2,3 dinitriles were synthesized from 1,4 naphthoquinone by bromination, cyanation and O alkylation.
研究了以1,4-萘醌为原料,通过溴代 、 氰化和O-烷基化三步合成1,4-二烷氧基萘-2,3-二甲腈.
相关词汇
the
were
synthesized
from
by
bromination
cyanation
and
alkylation
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;
were
be的过去时复数和第二人称单数形式,有时代替 was,用于条件从句、动词 wish 之后等;
synthesized
--
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];
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;
bromination
--
cyanation
氰化作用;
and
conj. 和,与,而且,于是,然后,因此;
alkylation
n. 烷化,烃化;
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。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘,一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
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。
相关例句
It is necessary to curtail or alter normally coexisting stimuli.
必需消除或改变正常时并存的刺激.
Problem communicating with customhouse, resolving the process applying to the customs to appear.
与海关沟通, 解决报关过程出现的问题.
They customarily went into battle side by side with their men.
他们向来都同士兵并肩作战.
Without some drastic and immediate cutback in expenses, It'simply wasn't possible.
如果不立即大幅度地削减开支, 这根本是不可能的.
Be all steal exchequer or steal civilian curtilage?
究竟算是偷金库还是偷民宅?
His tax-cutting pledge brought a delirious crowd to their feet.
他减税的承诺让亢奋的人群欢呼雀跃起来。
I know. He just cutline right in front of you.
我知道, 他居然就在你前面插队.
Aim To study the cutaneous permeation kinetics and pharmacodynamics of lidocaine gel.
目的研究利多卡因凝胶的经皮吸收动力学以及药效学.
You have the right to withhold your custom if you so wish.
如果你这么不想来,你可以不再光顾。
The ballerina bobbed a curtsy ( to the audience ) before leaving the stage.
那个芭蕾舞女演员在下台之前 ( 向观众 ) 行屈膝礼.
Envoys will come from Egypt; Cush will submit herself to God.
埃及的公侯要出来朝见神. 古实人要急忙举手祷告.
apple pie and custard
苹果馅饼加蛋奶沙司
...the curtailment of presidential power.
对总统权力的限制
The ink of cuttlefish beclouded the water.
墨鱼汁把水弄黑了.
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