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R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.是什么意思？

R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.

R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.

相关词汇
is replaceable function acetoxy their acyloxy and alkoxy or halo

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。

replaceable

adj. 可代替的；
例句
Most shredding machines are based on a revolving disc fitted with replaceable blades.
大多数粉碎机都是基于一个装有可替换刀片的旋转圆盘来实现作业的。

function

n. 功能，作用，应变量，函数，职务，重大聚会；vi. 有或起作用，行使职责；
例句
His function is vital to the accomplishment of the agency's mission.
要完成该机构的使命，他的作用至关重要。

acetoxy

--

their

pron. 他（她，它）们的，在提及性别不详的人时，用以代替 him 或 her；
例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

acyloxy

adj. 酸基的，酰氧基的；
例句
R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.
R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.

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。

alkoxy

adj. 烷氧基的；
例句
R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.
R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.

or

conj. 或，或者，还是，不然，否则，左右；prep. <古、诗>在…之前，比…更早；n. [纹章]黑金色、黑色；
例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

halo

n. 光环，荣光，（日月等的）晕；vt. 使有晕轮，围以光环；vi. 成晕轮；
例句
The sun had a faint halo round it...
环绕太阳有圈淡淡的光晕。
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
digital terrestrial and digital satellite broadcasting
数字陆上广播和数字卫星广播
They clearly thought he needed prodding on the desirability of relaxing tensions.
他们显然认为,他需要力陈一下缓和紧张局势的好处.
The talks will extend to the church, human rights groups and other social organizations...
会谈将涉及教会、人权团体和其他社会组织。
systematic phonetics
系统语音学
He was asked to sit on numerous committees...
他受邀担任过许多委员会的委员。
If we can’t get any financial backing,we might as well forget the whole thing.
我们如果得不到财政支持,整件事就可能告吹。
In half an hour, they'd switched the tags on every cable.
半个小时内，他们就给每根电缆都换了标签。
The study will strengthen the hand of congressmen who want stricter enforcement of the 14-year-old Act.
该研究将使那些希望更加严格执行这项已存在14年的法案的议员影响力加强。
...barrels of pickled fish.
几桶腌鱼
Accompanying the letter is a parcel of books.
信外随带书籍一包.