1·Magnetic coils focus the electron beams into fine spots.
磁线圈将电子束聚焦成细小的点。
—— 《柯林斯英汉双解大词典》
2·To do that, inventors started attaching electronic devices, electrical coils to the acoustic guitars.
为此，发明家们开始在原声吉他上安装电子设备和电子线圈。
3·At the beginning of the 20th century, Nikola Tesla proposed using huge coils to transmit electricity through the troposphere to power homes.
早在20世纪初，尼古拉·特斯拉就提出利用巨型线圈，通过大气对流层将电输送到千家万户。
4·Through the coils, the secondary device created a magnetic field that can wirelessly charge devices, as long as the two were within several meters.
通过线圈，第二部设备创造了一种磁场，可以实现无线充电，只要两部设备相差在几米之内就行。
5·They plopped each turtle into a small pool surrounded by magnetic coils.
他们把每个海龟放进有磁线圈围绕的小池子里。