The receiver of a trapped miner converts the magnetic waves into electrical signals, which he hears as a voice, and he responds with his position.
被困矿工的接收器再把磁波转换成电子信号，他就能听到声音，在他的位置做出回应。
2
These electrons get funnelled into a metal spherical receiver to produce a current, which generates the wire's magnetic field - making the system self-sustaining.
这些电子被引入一个球形金属收集器以产生电流，继而产生线圈的磁场——这样这个系统就可以自我维持了。
3
That is because the transmitter USES a large flat coil, placed over the heart, to generate the magnetic field that powers the receiver.