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Carboxymethyl larch tannin was synthesized with larch tannin using chloroacetic acid as etherification agent.是什么意思？

Carboxymethyl larch tannin was synthesized with larch tannin using chloroacetic acid as etherification agent.

以落叶松单宁为原料,氯乙酸为醚化剂,合成了具有表面活性的羧甲基落叶松单宁.

相关词汇
larch Tannin was synthesized with using acid as etherification agent

larch

n. 落叶松（木材）；
例句
...the house at 236 Larch Row.
拉奇街236号的房子

Tannin

--
例句
Full - bodied a solid, good tannin structure and apersistent aftertaste.
酒体丰腴,单宁结实而精致, 回味持久.

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；
例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

synthesized

--
例句
Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.
以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.

with

prep. 和，跟，随着，关于，和…一致；
例句
A waiter entered with a tray...
侍者端着托盘进来了。

using

v. 使用（ use的现在分词 ），利用，耗费，吸（毒）；n. 使用，利用，用途，使用权；
例句
The segments are filmed using either local actors or the actual people involved...
这些片断是由当地的演员或真实的当事人参与拍摄的。

acid

adj. 酸味的，尖刻的，酸的，酸性的；n. <化>酸，酸味物质；
例句
This comedy of contemporary manners is told with compassion and acid humour.
这部当代风尚喜剧杂糅了悲悯的情怀和尖酸的幽默。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如
例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

etherification

醚化，醚化作用；
例句
Carboxymethyl larch tannin was synthesized with larch tannin using chloroacetic acid as etherification agent.
以落叶松单宁为原料,氯乙酸为醚化剂,合成了具有表面活性的羧甲基落叶松单宁.

agent

n. 代理人，代理商，药剂，特工；vt. 由…作中介，由…代理；adj. 代理的；
例句
All these years he's been an agent for the East.
这些年来他一直是为东方国家效力的一位间谍。
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's two years since I've seen Iain. I'm still trying to wean myself off him but it's hard.
我已有两年没见过伊恩了。我试图让自己不再去想他，可很难做到。
It is no good setting vague and woolly goals — you will not know whether or not you have really achieved them.
树立模糊而不明确的目标是没有用处的——你无法知道自己是否已经达到了目标。
I go through phases where everything I write is just dross.
有几段时间我写什么都是垃圾。
The President spoke of the treacherous intentions of the enemy.
总统谈及了敌人的奸诈用心。
He's not a real alcoholic...
他并非货真价实的酒鬼。
It is an impressive achievement...
那是一项了不起的成就。
...the guidance and discipline that can be provided only by a strong male...
只有强有力的男性才能给予的指导和训练
The man who has just walked out is Tom.
刚才走出去的那个人是汤姆。
We hope the colour gives the house a warm and inviting feel...
我们希望这种颜色能让房子给人一种暖意融融、宾至如归的感觉。
...a decision taken in 1982 to build a store for spent fuel from submarines.
1982 年作出的为潜艇废燃料建立一个储存库的决定