她再次拿出手机接收服务信号，还是徒劳无功。
She again tries in vain to get her cell phone to pick up service.
在忙碌的服务器上出现信号量超时是很常见的。
It is common for semaphore timeouts to occur on a busy server.
一旦房间上升到一定温度，就再次发出信号暂停服务器的工作。
Once the temperature had risen, a second signal suspended work on the servers.
第二部分是实现远程信号分析服务。
The second part carries out the remote signal analyses service .
GPS信号和服务工作原理：当移动互联网可用！
Service works when GPS signal and mobile Internet available!
GPS信号和服务工作原理：当移动互联网可用！
Service works when GPS signal and mobile Internet available!
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