| |||
| 海〔河〕底下面的; 海底 〔河床〕下的卧层 | |||
| 底基; 海底浅层; 海底地层 | |||
|
subbottom : 27 phrases in 6 subjects |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Oceanography & oceanology | 1 |
| Oil / petroleum | 1 |
| Surveying | 1 |
| Technology | 22 |
| |||
| 海〔河〕底下面的; 海底 〔河床〕下的卧层 | |||
| 底基; 海底浅层; 海底地层 | |||
|
subbottom : 27 phrases in 6 subjects |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Oceanography & oceanology | 1 |
| Oil / petroleum | 1 |
| Surveying | 1 |
| Technology | 22 |