 |
| |||
| 统一标准螺纹 | |||
| 统一螺纹; 标准螺纹 | |||
| |||
| 统一标准螺纹〈美、英、加拿大〉 | |||
| unified thread: 21 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 3 |
| Drilling | 3 |
| Earth sciences | 2 |
| General | 2 |
| Mechanics | 3 |
| Oil / petroleum | 5 |
| Technology | 1 |
|
| |||
| 统一标准螺纹 | |||
| 统一螺纹; 标准螺纹 | |||
| |||
| 统一标准螺纹〈美、英、加拿大〉 | |||
| unified thread: 21 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 3 |
| Drilling | 3 |
| Earth sciences | 2 |
| General | 2 |
| Mechanics | 3 |
| Oil / petroleum | 5 |
| Technology | 1 |