radioactive tracer : 55 phrases in 15 subjects |
Analytical chemistry | 6 |
Construction | 1 |
Electronics | 1 |
Energy industry | 3 |
Environment | 1 |
Geophysics | 9 |
Makarov | 7 |
Medical | 1 |
Metallurgy | 1 |
Oil / petroleum | 13 |
Oil and gas | 1 |
Oilfields | 1 |
Physics | 2 |
Polymers | 2 |
Technology | 6 |