carbon

复数：carbons

1. [U]碳 a simple substance found in a pure form as diamonds, etc. or in an impure form as coal, petrol

• activated carbon 活性炭
• radioactive carbon 放射性碳

• carbon spot(硬币的)碳斑,黑斑
• carbon tax烟尘排放税

carbon dioxide二氧化碳

carbon fiber碳化纤维，碳素纤维

carbon steel[化]碳钢，碳素钢

activated carbon n. [化]活性碳

low carbon低碳的

carbon black炭黑；碳黑

active carbon活性炭；活性炭黑

carbon monoxide一氧化碳

carbon content n. 碳含量

carbon nanotube碳纳米管；奈米碳管

organic carbon有机碳

low carbon steel低碳钢

carbon source碳源

carbon fibre碳纤维

high carbon steel高碳钢

carbon footprint碳足迹；碳排放量

carbon tetrachloride四氯化碳（等于tetrachloromethane）

carbon electrode碳电极

carbon cycle碳循环，碳化循环

white carbon black白炭黑

1. Carbon dioxide consists of carbon and oxygen.
   二氧化碳是由碳和氧组成的。
2. He decided to use carbon because it does not melt.
   于是，他决定用碳，因为碳不易熔化。
3. I make a carbon copy of my documents.
   我用复写纸复写文件。
4. She put the carbon paper in the wrong way round.
   他把复写纸放反了。
5. The stick of carbon is often used in an electric arc lamp.
   碳精棒常用于电弧灯。