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Severe steric effects at the reactive carbon would impede the substitution.是什么意思？

Severe steric effects at the reactive carbon would impede the substitution.

大的立体效应阻止在碳上的取代.

相关词汇
severe steric effects at the reactive carbon would impede substitution

severe

adj. 严峻的，严厉的，剧烈的，苛刻的；
例句
He had severe abrasions to his right cheek.
他的右脸颊有严重的擦伤。

steric

--
例句
Severe steric effects at the reactive carbon would impede the substitution.
大的立体效应阻止在碳上的取代.

effects

n. 动产，财物，家财，结果( effect的名词复数 )，效果，感受，个人财产；
例句
You could only really tell the effects of the disease in the long term, and five years wasn't long enough...
真的，这种病只能在很久以后才能看出它的影响，而5年的时间还不够长。

at

prep. （表示位置）在，在（某时间或时刻），以，达， 向，朝；n. 阿特（老挝辅币单位，100 阿特 = 1 基普）；
例句
Prices start at £13.95 a metre for printed cotton...
印花棉布以每米13.95英镑的价格起售。

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。

reactive

--
例句
More reactive are the heavier isotopes of hydrogen, deuterium and tritium.
更为活跃的是氢的较重同位素, 氘和氚.

carbon

n. [化学]碳，（一张）复写纸，[电]碳精棒[片，粉]，碳精电极，复写的副本；adj. 碳的，碳处理的；
例句
...the abatement of carbon dioxide emissions.
二氧化碳排放的减少

would

aux. 将，将要，愿意，会，打算，大概；v. (will 的过去式，用于转述)将；
例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。

impede

vt. 阻碍，妨碍，阻止；
例句
At no time did I make an attempt to impede any investigatory effort.
我绝没有试图妨碍过任何调查工作。

substitution

n. 代替，代用，替换，<化>取代（作用）；
例句
In my experience a straight substitution of carob for chocolate doesn'twork.
根据我的经验，用角豆制品直接代替巧克力行不通。
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
subsoil cultivator
深耕松土机
Murder is a foul deed.
谋杀是件非常丑恶的事。
...the accumulation of capital and the distribution of income...
资本的积累和收入的分配
Shopkeepers buy them in bulk and resell them for £150 each.
店主们先大量购进，然后再以150英镑的单价将它们转卖出去。
Ask the meat man to trim away the fat edges of the meat.
请卖肉师傅把这块肉边上的肥膘切掉。
That list of addresses is outdated,many have changed.
那个通讯录已经没用了,许多地址已经改了。
It was considered a sin to work or play on the Sabbath.
在安息日工作或消遣都被视为罪过.
The sun crosses the sky from east to west.
太阳自东向西穿过天空。
I don't associate the two ideas.
这两个概念我联系不起来。
A vegetarian diet may not provide enough calories for a child's normal growth...
素食也许不足以提供一个孩子正常成长所需的热量。