“信号器”造句

当我们把船调头的时候，信号器又不停地发出哔哔声。
When we turned the boat about, the signal began to bleep again constantly.

交变系统,使一段给定路段上的信号器,展现相反的指示.
The alternate system allows signal installations along a given length of road to show contrary indications.

信号器既是发射器也是接收器.
Beacons serve both as transmitters and receivers.

• #信号器