 |
| CO2: 67 phrases in 13 subjects |
| Abbreviation | 44 |
| Astronautics | 1 |
| Biochemistry | 1 |
| Chemistry | 2 |
| Ecology | 2 |
| Energy industry | 4 |
| General | 1 |
| Law | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Oil processing plants | 5 |
| Stock Exchange | 1 |
| Technology | 3 |
|
| CO2: 67 phrases in 13 subjects |
| Abbreviation | 44 |
| Astronautics | 1 |
| Biochemistry | 1 |
| Chemistry | 2 |
| Ecology | 2 |
| Energy industry | 4 |
| General | 1 |
| Law | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Oil processing plants | 5 |
| Stock Exchange | 1 |
| Technology | 3 |