carbon
I make a carbon copy of my documents.
我用复写纸复写文件。
Soft drinks contain carbon dioxide.
软饮料中含有二氧化碳。
I have some carbon paper somewhere or other.
我记得我在什么地方放有复写纸。
She's a carbon copy of her sister.
她跟她姐姐一模一样。
Plants can absorb carbon dioxide and release oxygen.
植物可以吸收二氧化碳释放氧气。
Carbon has a valence of four.
碳的化合价是四价。
You receive the top copy of the receipt, and we keep the carbon.
你把这收据上面的原件收下，我们保留下面的复写件。
Coke consists mainly of carbon.
焦炭的主要成分是碳。
The stick of carbon is often used in an electric arc lamp.
碳精棒常用于电弧灯。
A radioactive isotope of carbon, especially carbon 14.
放射性碳碳的一种放射性同位素，尤指碳14。
As motor vehicles burn fuel, they give off carbon monoxide as a waste.
在汽车燃烧燃料时,产生废气一氧化碳。
The Powell structural research lab at the university of California at San Diego tests new bridge materials such as carbon and fiberglass polymers.
位于圣地亚哥的加州大学鲍威尔建筑实验室试制出了新的桥梁建筑材料，如碳和玻璃纤维聚合体。
A solid solution of iron and up to 1 percent of carbon, the chief constituent of hardened carbon tool steels.
马氏本，马登斯体一种由铁和高达百分之一的碳组成的溶液，是硬化碳工具钢的主要成分。
A type of atom specified by its atomic number, atomic mass, and energy state, such as carbon 14.
核种由它的原子序数、原子量和能量状况具体确定的一种原子，如碳14。
The carbon14 atoms oxidize to carbon dioxide which gets blown about and mixed up with lower atmosphere.
碳14原子氧化生成二氧化碳，向四周散去并与低空的大气混合。
Because the carbon content of steel largely determine its usefulness for specific application.
因为钢的含碳量在很大程度上决定了钢在具体应用时的范围。
It is very necessary to make sure that the carbon brushes stay in good contact with the commutator.
确定一下碳刷与换向器是否保持良好的接触，是非常必要的。
As the coke burns, some of it combine with the oxygen in the air to form carbon monoxide.
焦碳燃烧时，一部分碳与热风中的氧形成一氧化碳。
Originally Edison used platinum alloys for the filament, in the belief that carbon was impracticable.
爱迪生不相信碳可作灯丝用，所以一开始就用铂合金作灯丝。
Carbon has 4 valencies.
碳的化合价是四价。
A colorless, odorless, tasteless, gaseous mixture, mainly nitrogen(approximately 78 percent) and oxygen(approximately 21 percent) with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases.
空气一种无色、无嗅、无味的气体混合物，主要由氮气(约占78％)和氧气(约占21％)组成，还有少量的氩、二氧化碳、氢、氖、氦及其它气体。
A copy made by using carbon paper.
复写本，副本用复写纸复印的一份
Having a ring composed exclusively of carbon atoms, as benzene.
碳环的有一个仅由碳原子组成的环的，如苯
An alloy of iron and silicon used in the production of carbon steel.
硅铁一种用于生产碳素钢的铁和硅的合金
A polymer in which the repeating unit contains two carbon atoms linked by an oxygen atom.
聚醚一种聚合物，其中重复性的单位含有由一个氧原子连结的两个碳原子
A device for burning or chemically altering unburned or partially burned carbon compounds in exhaust gases.
排气后燃器用以充分燃烧或从化学上改变废气中未完全燃烧或部分燃烧的含碳化合物的设备
Carbon dioxide is converted into oxygen through the agency of plants.
二氧化碳由於植物的作用转化为氧气。
The heavy traffic tinctures the air with carbon monoxide.
繁忙的交通使空气里充满一氧化碳。
Carbon dioxide consists of carbon and oxygen.
二氧化碳是由碳和氧组成的。
Plants absorb carbon from the air.
作物从空气中吸收炭。
She put the carbon paper in the wrong way round.
他把复写纸放反了。
Producing or containing carbon or coal.
产碳或煤的，含碳或煤的
Both of the substances are not made up of carbon .
这两种物质并非都由碳组成。
We don't make cutting tools from low carbon steel.
我们不用低碳钢制造切削刀具。
He decided to use carbon because it does not melt.
于是，他决定用碳，因为碳不易熔化。
Diamond is a third form of solid carbon.
金刚石则是第三种形式的固态碳。
The carbon dioxide is expelled by the lungs.
二氧化碳由肺排出。
The residue is progressively enriched in carbon.
残留部分愈来愈富含碳质。
Diamond is make from elements carbon .
金刚石是由碳元素构成的.
Such a carbon is designated as a chiral carbon.
这样的碳原子称为手性碳。
What we exhale is carbon dioxide.
我们呼出的是二氧化碳。
Wood charcoal contains up to 98% carbon.
木炭含有相当于98%的碳。
Carbon dioxide may not be a typical air pollutant.
二氧化碳可能不是一种典型的污染物。
To become reduced to carbon or charcoal.
使烧成炭，使烧成木炭
Pig iron may contain 4% of carbon.
生铁约含有4%的碳。
Carbon dioxide consists of carbon and oxygen.
二氧化碳是由碳和氧组成的。
Carbon reinforced materials would be even better.
碳增强材料的性能则更优。
Please send your proposal with a carbon copy.
把你的提议发个副本给我。
The chemistry of compounds containing carbon.
含炭化合物的化学。
To make several copies of,as with carbon paper.
复写用如复写纸来做几份