| |||
| 螺纹种类 | |||
| |||
| 螺纹形式 | |||
|
thread types : 14 phrases in 7 subjects |
| Drilling | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Polygraphy | 1 |
| Space | 1 |
| Technology | 5 |
| Textile industry | 2 |
| |||
| 螺纹种类 | |||
| |||
| 螺纹形式 | |||
|
thread types : 14 phrases in 7 subjects |
| Drilling | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Polygraphy | 1 |
| Space | 1 |
| Technology | 5 |
| Textile industry | 2 |