| 1. | Wood charcoal contains up to 98% carbon . 木炭含有相当于98的碳。 |
| 2. | All living things contain radiocarbon . 所有生物都含有放射性碳。 |
| 3. | Diamond is a third form of solid carbon . 金刚石则是第三种形式的固态碳。 |
| 4. | Such a carbon is designated as a chiral carbon . 这样的碳原子称为手性碳。 |
| 5. | The residue is progressively enriched in carbon . 残留部分愈来愈富含碳质。 |
| 6. | Most manufacturers use a charcoal canister . 大多数厂商都使用活性碳收集器。 |
| 7. | The anions produced are carbanions . 由此而产生的负离子,人们称之为碳负离子。 |
| 8. | In soot the atoms have no regular arrangement . 在煤烟中,碳原子呈无规则排列。 |
| 9. | The carbene also reacts with alcohols . 碳烯也可与醇反应。 |
| 10. | Every carbon atom has four bonds . 每个碳原子的价键为四。 |