 |
| 不均匀 分 布: 27 phrases in 13 subjects |
| Automobiles | 1 |
| Bridge construction | 3 |
| Compressors | 1 |
| Electric machinery | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Metallurgy | 4 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 7 |
| Telecommunications | 2 |
| Wind Energy | 2 |