arrival signal

例句：

1. 1. The plane's landing gear is ready for the arrival signal.
   飞机的着陆装置准备接收到抵达信号。
2. 2.The train has arrived at the station with a loud announcement of its arrival signal.
   火车在车站发出响亮的抵达信号声。
3. 3.The pilot received an arrival signal from the control tower before taking off.
   飞行员在起飞前从控制塔收到了抵达信号。