 |
| |||
| 跨隔式双封隔器; 上、下双封隔器的上封隔器 | |||
| 跨式双封隔器 | |||
| 跨式压实机; 跨式打包机; 跨式装填机; 隔离式封隔器; 跨隔式封隔器; 双用封隔器 | |||
| straddle packer: 9 phrases in 5 subjects |
| Drilling | 1 |
| Geophysics | 1 |
| Mining | 2 |
| Oil / petroleum | 4 |
| Technology | 1 |
|
| |||
| 跨隔式双封隔器; 上、下双封隔器的上封隔器 | |||
| 跨式双封隔器 | |||
| 跨式压实机; 跨式打包机; 跨式装填机; 隔离式封隔器; 跨隔式封隔器; 双用封隔器 | |||
| straddle packer: 9 phrases in 5 subjects |
| Drilling | 1 |
| Geophysics | 1 |
| Mining | 2 |
| Oil / petroleum | 4 |
| Technology | 1 |