They measure position, force or temperature and transmit the data instantaneously byradio.
它们测量位移、受力状况以及温度,并通过无线电即时的将数据传送出去。
2
A clearly worried Walters used his CB radio to transmit a mayday call, which was picked up by operators on the ground who then maintained contact with him throughout the flight.
Walters真的担心起来,他用无线电发了呼救信号,地面接线员接到信号并自此和他一直保持联系。
3
Created by SPAWAR System Center Pacific, the sea water antenna USES the magnetic induction properties of salt to make ordinary ocean water transmit and receive radio signals.