| 1. | A bha strength analysis of reaming while drilling
随钻扩眼下部钻具组合的强度分析 |
| 2. | Bha : what role for the gm in the 21st century
英国饭店协会：总经理在21世纪的作用是什么？ |
| 3. | Vegetable and animal fats and oils . determination of bha and bht
植物和动物油脂. bha和bht的测定 |
| 4. | On the blended composition of maitreya belief and amit bha belief
试论弥勒信仰与弥陀信仰的交融性 |
| 5. | 3 what is the bha of this well
这口井的钻具组合是什么？ |
| 6. | What is the bha of this well
这口井的下部钻具如何组合 |
| 7. | What is the bha of this well
这口井的下部钻具如何组合 |
| 8. | Pick up bha and run to seafloor
将下部钻具下到海底 |
| 9. | Pick up bha and run to seafloor
将下部钻具下到海底 |
| 10. | Pick up same bit and bha
装上同样的钻头和钻具组合 |
