 |
| |||
| lead bit (MichaelBurov); pilot bit (MichaelBurov) | |||
| lead drilling bit; pilot drilling bit | |||
| pilot drill bit | |||
| пилотное буровое долото: 3 短语, 3 学科 |
| 技术 | 1 |
| 油田 | 1 |
| 石油/石油 | 1 |
|
| |||
| lead bit (MichaelBurov); pilot bit (MichaelBurov) | |||
| lead drilling bit; pilot drilling bit | |||
| pilot drill bit | |||
| пилотное буровое долото: 3 短语, 3 学科 |
| 技术 | 1 |
| 油田 | 1 |
| 石油/石油 | 1 |