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Clean Coal
| Technology
| clean coal | |
| coal. | carbón escogido; carbón paro |
| TECHNOLOGY | |
| polit. | tecnologia |
| Technology | |
| polit. | Tecnologìa |
| technology | |
| gen. | tecnica |
| econ. | tecnología |
| environ. | tecnología |
| |||
| carbón escogido; carbón paro | |||
| carbón limpio | |||
| Clean Coal: 5 phrases in 3 subjects |
| Coal | 2 |
| Ecology | 2 |
| United Nations | 1 |