 |
| |||
| multi-bottom well; multibranched well; multi-drain-hole well; multihole; multiple laterals | |||
| multi-bore well; multiple well | |||
| 多底 井: 9 phrases in 2 subjects |
| Drilling | 4 |
| Oil / petroleum | 5 |
|
| |||
| multi-bottom well; multibranched well; multi-drain-hole well; multihole; multiple laterals | |||
| multi-bore well; multiple well | |||
| 多底 井: 9 phrases in 2 subjects |
| Drilling | 4 |
| Oil / petroleum | 5 |