 |
缩径的
| 钻头
| 缩径的 | |
| plast. | reducing |
| 钻头 | |
| gen. | drill |
| bridg.constr. | borer; boring bit; boring head |
| hydroel.st. | aiguille; drill bit; bore bit |
| met. | drilling bit; straight bit |
| |||
| reducing | |||
| 缩径的: 7 phrases in 7 subjects |
| Drilling | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 1 |
| Mechanics | 1 |
| Oil / petroleum | 1 |
| Technology | 1 |
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