 |
| 反应器: 301 phrase in 17 subjects |
| Biotechnology | 1 |
| Chemistry | 11 |
| Ecology | 1 |
| Electronics | 50 |
| Environment | 1 |
| General | 142 |
| Geography | 1 |
| Medical | 2 |
| Microelectronics | 1 |
| Nautical | 2 |
| Nuclear and fusion power | 9 |
| Oil / petroleum | 3 |
| Oil and gas technology | 1 |
| Oil processing plants | 21 |
| Scientific | 1 |
| Shipbuilding | 1 |
| Technology | 53 |