 |
| |||
| tar | |||
| bitumen | |||
| tar A viscous material composed of complex, high-molecular-weight, compounds derived from the distillation of petroleum or the destructive distillation of wood or coal | |||
| pitch | |||
| alquitran: 139 短语, 18 学科 |
| 一般 | 2 |
| 农业 | 9 |
| 冶金 | 1 |
| 化学 | 49 |
| 医疗的 | 6 |
| 卫生保健 | 1 |
| 商业 | 1 |
| 建造 | 15 |
| 技术 | 2 |
| 煤炭 | 12 |
| 环境 | 11 |
| 石油/石油 | 2 |
| 纺织工业 | 1 |
| 联合国 | 1 |
| 能源行业 | 2 |
| 行业 | 17 |
| 运输 | 6 |
| 食品服务和餐饮 | 1 |