carbon造句
In its untreated state the
carbon fibre material is rather like cloth.
原始的碳纤维材料很像布料。
The two principal combustion products are water vapor and
carbon dioxide.
两种主要的燃烧产物是水蒸气和二氧化碳。
In graphite sheets,
carbon atoms bond together in rings.
石墨层中的碳原子相互连接形成碳环。