| 1. | Every column includes a certificate of analysis that
每一管柱均附有一成分分析表 |
| 2. | The development and application of the upper isolation workstring
顶封封隔管柱的研制与应用 |
| 3. | Guarantees the analytical results of the column
保证管柱之分析结果 |
| 4. | Pull out the drifting string and check the gauge for scratch
起出通井管柱，检查通井规擦痕。 |
| 5. | Development and application of pipe string telescopic compensatory
管柱伸缩补偿器的研制与应用 |
| 6. | Nonextractable phase open tubular column npot
不可提取相开管柱 |
| 7. | Study of calculation model of pressure field of water injection string
注水管柱压力场计算模型研究 |
| 8. | Immobilized phase open tubular column ipot
固定化相开管柱 |
| 9. | Hmn is an intensive cleaning agent for sand control pine string
Hmn防砂管柱清洗剂是一种强力清洗剂。 |
| 10. | Tilt and telescopic steering column
倾斜和缩进式转向管柱 |
