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| champ d'alarme (transmission equipment, appareil de transmission); champ de signalisation (transmission equipment, appareil de transmission); unité d'alarme (transmission equipment, appareil de transmission); unité de signalisation (transmission equipment, appareil de transmission) | |||
|
alarm unit : 2 短语, 2 学科 |
| 一般 | 1 |
| 通讯 | 1 |