 |
| |||
| by pit | |||
| return shaft; tender shaft; u.c.shaft; upcast shaft; by-pit | |||
| ventilation shaft | |||
| air pit; air shaft; fang; upcast pit | |||
| bypassing-pit | |||
| вентиляционный ствол: 29 短语, 4 学科 |
| 技术 | 2 |
| 电子产品 | 1 |
| 矿业 | 25 |
| 黄金开采 | 1 |
|
| |||
| by pit | |||
| return shaft; tender shaft; u.c.shaft; upcast shaft; by-pit | |||
| ventilation shaft | |||
| air pit; air shaft; fang; upcast pit | |||
| bypassing-pit | |||
| вентиляционный ствол: 29 短语, 4 学科 |
| 技术 | 2 |
| 电子产品 | 1 |
| 矿业 | 25 |
| 黄金开采 | 1 |