 |
| |||
| U型形的 | |||
| U 形的 | |||
| U-type: 24 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Chemistry | 1 |
| Compressors | 1 |
| Drilling | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Genetics | 1 |
| Metallurgy | 2 |
| Nautical | 2 |
| Refrigeration | 1 |
| Technology | 11 |
|
| |||
| U型形的 | |||
| U 形的 | |||
| U-type: 24 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Chemistry | 1 |
| Compressors | 1 |
| Drilling | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Genetics | 1 |
| Metallurgy | 2 |
| Nautical | 2 |
| Refrigeration | 1 |
| Technology | 11 |