加深 : 113 phrases in 15 subjects |
Agriculture | 1 |
Astronautics | 1 |
Aviation | 1 |
Drilling | 3 |
Education | 4 |
Fishery fishing industry | 1 |
General | 69 |
Geology | 3 |
Geophysics | 2 |
Ichthyology | 1 |
Nautical | 1 |
Oil / petroleum | 2 |
Oil processing plants | 2 |
Politics | 1 |
Technology | 21 |