 |
| |||
| surface casing string | |||
| surface casing (surface pipe) | |||
| surface casing; surface pipe | |||
| кондукторная обсадная колонна: 2 短语, 1 学科 |
| 油和气 | 2 |
|
| |||
| surface casing string | |||
| surface casing (surface pipe) | |||
| surface casing; surface pipe | |||
| кондукторная обсадная колонна: 2 短语, 1 学科 |
| 油和气 | 2 |