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指示灯 | |||
灯光信号 | |||
信号灯光; 回光灯; 通信闪光灯; 标灯 | |||
信号灯 | |||
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信号烟火 | |||
信号灯 |
signal light : 67 phrases in 14 subjects |
Animal husbandry | 1 |
Automobiles | 4 |
Aviation | 5 |
Business | 1 |
China | 1 |
Communications | 3 |
Electronics | 12 |
Environment | 1 |
General | 3 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Rail transport | 2 |
Technology | 31 |
Telecommunications | 1 |