| |||
tip switch | |||
keyer; manipulator | |||
keying unit | |||
keyboard keyer | |||
| |||
keyer |
键控器 : 50 phrases in 12 subjects |
Air defense | 2 |
Aviation | 2 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 8 |
General | 2 |
Multimedia | 1 |
Oil / petroleum | 4 |
Shipbuilding | 1 |
Space | 6 |
Technology | 14 |
Telecommunications | 8 |