| |||
| 观测井 | |||
|
log well : 57 phrases in 9 subjects |
| Construction | 4 |
| Drilling | 7 |
| Earth sciences | 3 |
| Engineering geology | 5 |
| General | 1 |
| Geophysics | 5 |
| Nuclear physics | 1 |
| Oil / petroleum | 18 |
| Technology | 13 |
| |||
| 观测井 | |||
|
log well : 57 phrases in 9 subjects |
| Construction | 4 |
| Drilling | 7 |
| Earth sciences | 3 |
| Engineering geology | 5 |
| General | 1 |
| Geophysics | 5 |
| Nuclear physics | 1 |
| Oil / petroleum | 18 |
| Technology | 13 |