盖膜 : 50 phrases in 18 subjects |
Agriculture | 9 |
Automobiles | 4 |
Aviation | 1 |
Biotechnology | 1 |
Chemistry | 1 |
Computers | 1 |
Ecology | 2 |
Electric machinery | 1 |
Electronics | 1 |
General | 10 |
Ichthyology | 1 |
Metallurgy | 2 |
Oil processing plants | 1 |
Otorhinolaryngology | 1 |
Plastics | 1 |
Reproductive biology | 2 |
Space | 1 |
Technology | 10 |