signalman [ˈsɪɡnəlmən]

例句:

• The worst case was a signalman who was just learning to send semaphores.
  来自NEWYORKER
• British Rail had to post a signalman at the entrance to the tunnel.
  英国铁路公司不得不在隧道入口设置了一名信号员。
  
• Signalman should coordinate to ensure Safe Lifting Operation with proper signals.
  信号员必须确保使用正确的信号,保证起重机动作安全.
  
• The signalman's signature sign is significant to the vacant vacation.
  信号员的签字符号对空假期具有重要意义.
  
• As the train picked up speed it passed the signalman's cabin outside Kishanganj and stopped briefly at Panjipara, 6 km away.
  来自CNN