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它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应.用英语怎么说?
它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应.
They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions.
相关词汇
they
were
principally
used
to
catalyze
aldol
allylation
alder
and
Crafts
reactions
they
pron. 他/她/它们,人们,大家,政府,当局,她们;
例句
The storms had abated by the time
they
rounded Cape Horn.
他们绕过合恩角时,暴风雨已经减弱。
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;
例句
Shops, houses, and vehicles
were
set ablaze.
店铺、房子和车辆全都陷于火海。
principally
adv. 主要地,大部分;
例句
This is
principally
because the major export markets are slowing...
这主要是因为主要出口市场发展缓慢。
used
adj. 用过的,习惯于,二手的,旧的;v. 使用( use的过去式和过去分词),常常,经常;
例句
The gym can be
used
by both able-bodied and disabled people.
这家健身房健全和残障人士都可使用。
to
prep. 向,朝着,到,关于,属于;adv. 朝一个方向的,到某种状态,关闭;
例句
I suggest you leave it
to
an expert...
我建议你把它留给专家来解决。
catalyze
vt. 催化,促进;
例句
Any unexpected circumstance that arises may
catalyze
a sudden escalation of violence.
任何突如其来的情况都可能造成暴力骤然升级。
aldol
n. 丁间醇醛;
allylation
烯丙基化(作用);
alder
n. 桤木;
例句
Modification for synthetic purposes on the Diels -
Alder
adducts 56 and 62 has only rarely been considered.
为了达到合成的目的,对Diels-Alder加 成物(56)和(62)加以改造的问题很少有人考虑.
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。
Crafts
n. 工艺( craft的名词复数 ),行业,飞机,飞行器;
例句
...the arts and
crafts
of the North American Indians...
北美印第安人的手工艺
reactions
n. 反应( reaction的名词复数 ),反动,反对,反作用力;
例句
Soya milk can cause allergic
reactions
in some children.
有些孩子会对豆浆过敏。
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
The hospital is freezing staff appointments as part of its cutbacks.
这家医院冻结员工职位作为削减开支的一部分.
Her bare feet were dirt-streaked and cracked with cold.
她赤裸的双脚上满是一道道的泥污,都冻得开裂了。
Typical desert animals are the gazelle, the fox, and the hare.
常见的沙漠动物有瞪羚 、 狐狸和野兔.
Those workers were employed in excavating the foundations of the building.
那些工人忙于挖掘建筑物的基础.
Please follow me, madam...
请跟我来,夫人。
"Our marriage was a mistake," she said, looking rueful.
“我们的婚姻是个错误,”她说着,看起来懊悔不已。
The window refused to budge...
窗户推不开。
My fond hope is that we will be ready by Christmastime.
我痴想着希望我们可以在圣诞假期前准备就绪。
Thorn's electronics operation employs around 5,000 people.
索恩的电子公司雇用了约5,000名员工。
Conclusion: The axial length was the most significant factor to the childrens anisometropia.
结论: 眼轴长度差是产生双眼屈光参差的主要因素,这对这类病人的临床屈光矫正有指导意义.
热门汉译英
simple
channel
oversees
chores
pin
inefficient
juniors
kitting
lists
advanced
tricks
rudely
accepted
occasion
overcast
resource
tickets
much
callboy
thinner
significant
simplified
flecked
bellied
advance
persons
itemized
befit
slumming
热门汉译英
跳绳
盎格鲁撒克逊人
说正经的
毕业论文
一首诗
蛋黄酱
逐渐变少或变小
承认的
蒙默思郡
过分艳丽的
煤矿坑
着名
配料
有记号的
欺负人
栗疹
可查性
离子化的
杀兄弟的
焦点
泥沼状的
盟员
包钢
烯醇
重提
味觉缺失
参照
屈膝
新娘
细粒化
射手
科隆
脏物
撕碎
急升
组阁
裁制
发暖
耳点
刑事起诉书
白细胞三烯
导轨
锯木厂
秘方
氢化脱硫作用
爱奥尼亚的
肥畜
不甘
孕诺二烯醇
最新汉译英
baronets
brooked
spilt
bypassed
jigging
spilth
virility
overcast
enwombed
spearing
grouper
vices
diplegia
spastic
coddled
lurching
minor
dienol
dienes
pulsars
dien
Marta
styling
versant
wetly
wetness
gallfly
deodorants
icicles
最新汉译英
爱德华氏菌属
蜂拥而出
排气
口才好地
使隐藏
脉冲射电源
不道德行为
二亚乙基三胺
马尔塔
除臭剂
下雨
冷冰冰的
甲状旁腺功能亢进
磁致电阻率
自吹自擂的人
磁致电阻
血管神经胶质瘤病
邀请的
叹息道
天兔座
讨厌法国的
人化的
凡人化
胆大妄为
潮湿的
方巾
忸捏
花色丝质大手帕
使断奶
排挡
地板的面积
倒生的
放声大哭
齿轮的齿
齿轮
用齿轮连接
马里亚纳群岛
变速箱
肾旁的
肢端感症
锰铜
发霉的
具子实体的
出让
承认或允许
特许经营权
租借地
椭圆率
承让