 |
| |||
| 底面积 | |||
| 径向密封/转子发动机基面 | |||
| 反面 | |||
| 底面 | |||
| 下表面; 低面 | |||
|
bottom surface : 16 phrases in 8 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Bridge construction | 2 |
| Electronics | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Sealing | 1 |
| Technology | 6 |
|
| |||
| 底面积 | |||
| 径向密封/转子发动机基面 | |||
| 反面 | |||
| 底面 | |||
| 下表面; 低面 | |||
|
bottom surface : 16 phrases in 8 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Bridge construction | 2 |
| Electronics | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Sealing | 1 |
| Technology | 6 |