语文书 / 例句 /

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
She kept looking at the dial on the boiler. The needle had reached 250 degrees.
她一直看着锅炉上的刻度盘，指针已指向了250度。
I was numbed by the enormity of the responsibility...
责任之大让我惊慌失措。
The runaway car careered into a bench, hitting an elderly couple...
那辆失控的车猛冲到一条长椅上，撞伤了一对老夫妇。
The 20 km long shallow - bottomed fjord, Otago Harbour, is the home of an abundance of wildlife.
拥有20公里长的低浅峡湾的奥塔哥港, 拥有丰富的野生动植物资源.
Yesterday the field opposite was sown with maize.
昨天对面的田里播种了玉米。
The butterfly quivers its wings.
蝴蝶抖动翅膀.
State - of - the - art suspension guarantees a smooth passage over the bumpiest road.
最先进的减震悬架保证汽车在最崎岖不平的道路上也可以平稳通行.
I find her exhausting to be with—she’s too intense.
我感到和她在一起很累,她这个人太热情了。
All I know is the young boys sleep late and hard.
我只知道少年睡得沉,起得晚.
Gazza finished a creditable third.
加扎以优异的成绩获得了三级荣誉学位。