open-drain : 66 phrases in 19 subjects |
Automobiles | 1 |
Computers | 2 |
Ecology | 3 |
Electrical engineering | 1 |
General | 4 |
Geology | 2 |
Makarov | 3 |
Mining | 1 |
Oil / petroleum | 11 |
Oil and gas | 4 |
Oilfields | 1 |
Plumbing | 3 |
Programming | 1 |
Road works | 1 |
Sakhalin | 15 |
Sakhalin A | 6 |
Sakhalin R | 5 |
Technology | 1 |
Tengiz | 1 |