 |
| |||
| Strömung der wichtigsten Gase natürlichen Ursprungs | |||
| flux of: 22 phrases in 8 subjects |
| Economy | 1 |
| Finances | 1 |
| Metallurgy | 3 |
| Microelectronics | 1 |
| Natural resourses and wildlife conservation | 2 |
| Optics branch of physics | 7 |
| Research and development | 1 |
| Technology | 6 |