 |
| |||
| Rotary Air Blast (sometimes Rapid Advance Bore MichaelBurov); RAB (MichaelBurov); rapid advance bore (MichaelBurov) | |||
| вращающаяся воздушная струя: 7 短语, 1 学科 |
| 黄金开采 | 7 |
|
| |||
| Rotary Air Blast (sometimes Rapid Advance Bore MichaelBurov); RAB (MichaelBurov); rapid advance bore (MichaelBurov) | |||
| вращающаяся воздушная струя: 7 短语, 1 学科 |
| 黄金开采 | 7 |