 |
| fuel cell: 375 phrases in 33 subjects |
| Accumulators | 1 |
| Armored vehicles | 4 |
| Astronautics | 33 |
| Automobiles | 11 |
| Aviation | 5 |
| Biotechnology | 1 |
| Chemistry | 2 |
| Construction | 1 |
| Ecology | 4 |
| Economy | 1 |
| Electrical engineering | 4 |
| Electricity | 1 |
| Electrochemistry | 6 |
| Electronics | 37 |
| Energy industry | 74 |
| Energy system | 1 |
| Makarov | 47 |
| Medical appliances | 1 |
| Microelectronics | 1 |
| Military | 7 |
| Nanotechnology | 40 |
| Natural resourses and wildlife conservation | 2 |
| Nautical | 9 |
| Nuclear and fusion power | 4 |
| Nuclear physics | 1 |
| Physics | 4 |
| Production | 1 |
| Programming | 1 |
| Solar power | 27 |
| Technology | 36 |
| Telecommunications | 1 |
| Thermal Energy | 3 |
| Transport | 4 |