| |||
merkkiaine; markkeri | |||
indikaattori; ilmaisin | |||
merkkikaasu |
tracer : 20 phrases in 9 subjects |
Cultural studies | 1 |
Economics | 1 |
Electronics | 2 |
Environment | 3 |
Human rights activism | 2 |
Information technology | 3 |
Life sciences | 1 |
Pharmacy and pharmacology | 3 |
Transport | 4 |