 |
| |||
| united screw thread | |||
| unified thread | |||
| 统一螺纹: 32 phrases in 10 subjects |
| Automobiles | 5 |
| Aviation | 3 |
| Drilling | 3 |
| Earth sciences | 2 |
| General | 4 |
| Mechanics | 5 |
| Oil / petroleum | 5 |
| Plastics | 1 |
| Space | 1 |
| Technology | 3 |
|
| |||
| united screw thread | |||
| unified thread | |||
| 统一螺纹: 32 phrases in 10 subjects |
| Automobiles | 5 |
| Aviation | 3 |
| Drilling | 3 |
| Earth sciences | 2 |
| General | 4 |
| Mechanics | 5 |
| Oil / petroleum | 5 |
| Plastics | 1 |
| Space | 1 |
| Technology | 3 |