| |||
composite signal | |||
| |||
compound signal | |||
composite signal | |||
| |||
complete signal |
复合 信 号 : 36 phrases in 10 subjects |
Air defense | 5 |
Automobiles | 1 |
Biology | 1 |
Electronics | 6 |
Information technology | 1 |
Multimedia | 6 |
Space | 4 |
Technology | 8 |
Telecommunications | 3 |
Television | 1 |