 |
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| 井下压力; 钻进时的钻头压力 | |||
|
downhole pressure : 15 do fraz, 4 tematyki |
| Górnictwo | 4 |
| Ropa / ropa naftowa | 7 |
| Technika i technologia | 3 |
| Wiercenie | 1 |
|
| |||
| 井下压力; 钻进时的钻头压力 | |||
|
downhole pressure : 15 do fraz, 4 tematyki |
| Górnictwo | 4 |
| Ropa / ropa naftowa | 7 |
| Technika i technologia | 3 |
| Wiercenie | 1 |