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| electrosemaphore | |||
| electrical signalling | |||
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电 信号机 : 45 phrases in 12 subjects |
| Agriculture | 1 |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Business | 1 |
| Communications | 5 |
| Electric machinery | 2 |
| Electronics | 5 |
| General | 4 |
| Management | 1 |
| Rail transport | 1 |
| Technology | 20 |
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