| |||
| 横杆 〔塔上,杆上〕信号 | |||
| 旗语信号 | |||
| 杆上信号; 塔上信号; 手旗信号; 手旗通信; ★ 臂板信号机 | |||
|
semaphore : 48 phrases in 13 subjects |
| Business | 2 |
| Communications | 8 |
| Construction | 1 |
| Desert science | 2 |
| Electronics | 2 |
| General | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Programming | 1 |
| Public security | 1 |
| Rail transport | 8 |
| Technology | 19 |
| Telecommunications | 1 |