| |||
class symbol | |||
| |||
group code |
组 符号 : 24 phrases in 12 subjects |
Agriculture | 1 |
Aviation | 1 |
Computers | 2 |
Construction | 1 |
Finances | 1 |
Information technology | 2 |
Mathematics | 2 |
Metallurgy | 1 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 8 |
Telecommunications | 1 |