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- Carbon is tetravalent. 碳是四价的。
- The stick of carbon is often used in an electric arc lamp. 碳精棒常用于电弧灯。
- Such a carbon is designated as a chiral carbon. 这样的碳原子称为手性碳。
- Carbon is a basic element in organic compound. 碳是有机物的基本元素。
- Carbon is found in all living things. 碳元素存在于一切生物体中。
- Carbon is present in many minerals. 碳存在于许多矿物之中。
- In plain carbon steel, carbon is the only alloy element. 只有在普碳钢中,碳才是唯一的合金元素。
- When the organism dies, no new radioactive carbon is assimilated. 机体死后,不能再吸取新的放射性碳。
- In plain carbon steel, carbon is the only alloy element . 只有在普碳钢中,碳才是唯一的合金元素。
- The stick of carbon is often used in an electric arclamp. 碳精棒常用于电弧灯。
- Carbon is an element,while carbon dioxide is a compound. 碳是元素,而二氧化碳是化合物
- Carbon is an element, while carbon dioxide is a compound. 碳是元素,而二氧化碳是化合物。
- Active carbon is widely used because of its low price. 活性炭由于价格比较低所以现在被广泛运用。
- Persisence is to the character of man as carbon is to steel. 坚持是人的必备品质,正如碳是钢铁的必备元素。
- In plain carbon steel,carbon is the only alloy element. 只有在普碳钢中,碳才是唯一的合金元素。
- Industrial carbonation is the source of the fizz in soda drinks. 但是汽水之类的饮料之所以会发出嘶嘶声,则是工厂将之碳酸化的结果。
- Elsewhere carbon is sprayed or bubbled into algae ponds. 在其他一些地方,人们将碳喷入或直接连入藻类池塘。
- Carbon is needed as a reducing agent in many metallurgical operation. 许多金属冶炼操作中需要碳作为还原剂。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- When carbon is added to iron in the proper proportions, the result is steel. 按照正确的比例在铁里加入碳,就制成了钢。