керн : 148 phrases in 15 subjects |
Astronautics | 2 |
Chemistry | 1 |
Construction | 6 |
Electronics | 1 |
English | 1 |
Geology | 48 |
Hydraulic engineering | 7 |
Mathematics | 2 |
Mechanic engineering | 1 |
Mining | 8 |
Natural resourses and wildlife conservation | 1 |
Oil and gas technology | 61 |
Radio | 1 |
Surveying | 1 |
Technology | 7 |