| |||
language | |||
field | |||
character set (field); set of symbols |
符号 组: 21 phrases in 11 subjects |
Agriculture | 1 |
Aviation | 1 |
Computers | 1 |
Construction | 1 |
Finances | 1 |
Information technology | 2 |
Mathematics | 2 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 7 |
Telecommunications | 1 |