| |||
| 双头螺纹的 | |||
|
double threaded : 6 phrases in 5 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Plastics | 1 |
| Technology | 2 |
| Textile industry | 1 |
| |||
| 双头螺纹的 | |||
|
double threaded : 6 phrases in 5 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Plastics | 1 |
| Technology | 2 |
| Textile industry | 1 |