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The pollution of nitric oxide and the method of denitration were introduced.是什么意思？

The pollution of nitric oxide and the method of denitration were introduced.

介绍了氮氧化物排放污染的危害以及氮氧化物控制的方法.

相关词汇
the pollution of nitric oxide and method denitration were introduced

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。

pollution

n. 污染（作用），腐败，堕落，沾污；
例句
The air pollution exceeds most acceptable levels by 10 times or more.
大气污染程度超出了普遍认可的标准10倍或更多。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

nitric

--
例句
Aliphatic hydrocarbons can be nitrated even with 13 % nitric acid.
脂肪酸甚至能被13%的硝酸硝化.

oxide

n. [化]氧化物；
例句
Nitric oxide scavenger ( N - acetylcysteine ) could recover the inhibition effect of sodium nilroprusside.
ON清除剂N - 乙酰 半胱氨酸 能明显清除硝普钠的抑制效应.

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。

method

n. 方法，条理；
例句
...an accrual method of accounting.
会计学中的应计法

denitration

n. 脱[去，除]硝；
例句
The pollution of nitric oxide and the method of denitration were introduced.
介绍了氮氧化物排放污染的危害以及氮氧化物控制的方法.

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。

introduced

adj. [医]引种的，引进的；v. 提出( introduce的过去式和过去分词 )，介绍，引进，作为…的开头；
例句
The changes will be introduced in April...
这些变更将于4月开始实行。
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
You need to become fully conversant with the company's procedures.
你得对公司的程序了如指掌。
Many times I read magazines while munching and listeningtomusic.
很多时候我一边听着音乐嚼着M& M巧克力,一边读杂志.
a sulky look
生气的样子
He has determined on proving his friends'innocence.
他决心替他的朋友洗清罪名.
His dark hair was all awry.
他的黑头发全乱了。
Use a template or stencil or simply do it freehand.
使用样板或模版，或者干脆徒手画。
In clinging to these small issues you are the Maid's best advocates.
你们对这些小事纠缠不休,正好变成了少女最得力的辩护人.
His lands were poorly farmed.
他的田地耕种不当。
This eutectic composition has a melting temperature lower than the operating temperature.
这共晶成分的熔化温度低于操作温度.
...Mount Kilimanjaro.
乞力马扎罗山