 |
| 水平轴: 68 phrases in 16 subjects |
| Automobiles | 6 |
| Aviation | 2 |
| Bridge construction | 1 |
| Compressors | 1 |
| Desert science | 1 |
| Electronics | 2 |
| General | 1 |
| Geophysics | 1 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Nautical | 3 |
| Space | 5 |
| Technology | 32 |
| Telecommunications | 1 |
| Textile industry | 1 |
| Wind Energy | 9 |