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The first catalytic converters were called conventional oxidation catalysts.是什么意思？

The first catalytic converters were called conventional oxidation catalysts.

最初的转化器叫做常规氧化催化器.

相关词汇
the first catalytic converters were called conventional oxidation catalysts

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。

first

n. 第一，最初，头等，一号，，[乐]高音部；adv. 最早，最初，首次，宁愿，优先；adj. 第一流的，最初的，最早的，基本的，概要的，高音的；num. 第一；
例句
He abbreviated his first name to Alec.
他将自己的名字缩写为亚历克。

catalytic

adj. 接触反应的，起催化作用的；n. 催化剂，刺激因素；
例句
...carbon molecules with unusual chemical and catalytic properties.
具有特殊化学性质和催化性的碳分子

converters

n. 转炉( converter的名词复数 )，转换器，（改变无线电信号的）变频器，整流器；
例句
The first catalytic converters were called conventional oxidation catalysts.
最初的转化器叫做常规氧化催化器.

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。

called

v. 叫( call的过去式和过去分词 )，通电话，认为，估计；
例句
He has also called for an acceleration of political reforms.
他同时呼吁加快政治改革的步伐。

conventional

adj. 传统的，习用的，平常的，依照惯例的，约定的；
例句
Delegates signed a treaty to reduce the armouries of conventional weapons in Europe.
各代表签署了协议以减少欧洲的常规武器装备。

oxidation

--
例句
Total absorptivity can be up to 98 % using second - order absorption - oxidation process.
采用二级吸收 — 氧化流程,总的吸收率可达98%以上.

catalysts

n. <化>催化剂( catalyst的名词复数 )，触媒，促进因素，有感染力的人；
例句
The Greens were the catalysts of a necessary change in the European consciousness.
绿党促使欧洲人的观念发生了必要的改变。
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
Such disputes multiplied in the eighteenth and nineteenth centuries.
这类纠纷在18和19世纪大量增多。
florid decoration
华丽的装饰
Keats is referring to epic poetry when he mentions Homers proud demesne.
当济慈提到荷马的骄傲的领域时,他指的是史诗.
a coffee grinder
咖啡研磨器
How could racial profiling exist if most everyone looks the same?
如果大家长得都一样,种族歧视评判怎么可能存在?
Old Walter is setting down his memories of village life.
老沃尔特正在写他乡村生活的回忆录。
We drank ourselves into a stupor on cheap wine.
我们喝廉价葡萄酒喝得酩酊大醉。
Ample bone, strong and flexible , moderately angulated at stifle and hock.
充足的骨量, 结实且柔韧, 后膝关节和飞节的角度恰当.
We'll make a trip by launch to White Island.
我们将乘汽艇到怀特岛。
They cut notches in the handle of their pistol for each man they shot.
他们每杀一个人就在枪托上刻下一个V形记号。