 |
| |||
| test hole drilling; prospecting drilling; exploration drilling | |||
| borehole | |||
| exploratory boring | |||
| exploring drilling | |||
| sondage de reconnaissance: 1 短语, 1 学科 |
| 自然科学 | 1 |
|
| |||
| test hole drilling; prospecting drilling; exploration drilling | |||
| borehole | |||
| exploratory boring | |||
| exploring drilling | |||
| sondage de reconnaissance: 1 短语, 1 学科 |
| 自然科学 | 1 |