| |||
post-signal; postamble |
后信 号 : 39 phrases in 13 subjects |
Air defense | 4 |
Automobiles | 3 |
Aviation | 2 |
Communications | 2 |
Construction | 1 |
Electronics | 2 |
General | 1 |
Information technology | 1 |
Metallurgy | 1 |
Rail transport | 1 |
Space | 1 |
Technology | 17 |
Telecommunications | 3 |