| 1. | It is desirable that compensating cables be run in earthed conduit .
补偿导线最好在地下管道中穿过。 |
| 2. | Recently they have laid an underground pipeline
最近,他们铺设了一条地下管道。 |
| 3. | Nonmetallic underground piping for flammable liquids
输送可燃液体用非金属地下管道 |
| 4. | Recently they have laid an underground pipeline
最近他们铺设了一条地下管道。 |
| 5. | Underground service line valves and fittings
地下管道阀门和配件 |
| 6. | Detection of faults in coal mine by useing ground penetrating rada r
探地雷达探测地下管道的效果分析 |
| 7. | Application of horizontal directional drill to laying of underground pipeline
水平导向钻机在地下管道铺设中的应用 |
| 8. | Test method for open - channel flow measurement of water indirectly at culverts
在地下管道水的明渠流量测量的试验方法 |
| 9. | Research on practical method for predicting earthquake damage to underground pipelines
地下管道震害预测实用方法的研究 |
| 10. | Electromagnetic locators for buried pipes and cables - performance and safety
地下管道和电缆用电磁波监测器.性能和安全 |
