signal office

例句：

1. 1. The signal office is responsible for maintaining the communication network.
   信号办公室负责维护通信网络。
2. 2. The signal office has been upgrading its equipment to improve service quality.
   信号办公室一直在升级设备以提高服务质量。
3. 3. The signal office is responsible for providing emergency services during emergencies.
   信号办公室在紧急情况下负责提供应急服务。