- subgroup signaling equipment
- 信号: signal; semaphore; gun
- 设备: equipment; device; facility; ...
- 信号设备: indication; signal device; signal equipment; signaling device; signaling equipment; signaling set; signalling appliance; signalling equipment
- 总信号设备: main signaling equipment; main signalling equipment
- 组信号设备: grousignalling equipment
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