【电学】盘绕，电磁的【电学】盘绕、电磁μ

coil

deflecting focusing coil for camera tube

inductance, transformer, coil winding machine

by-pass a heating coil in tower

stator coil inserting machine【电】

convergence coil【电子】;focus coil【电子】;focusing coil【电子】

moving-conductor loudspeaker【电子】;moving-coil loudspeaker【电子】;moving-coil speaker【电子】

aperiodical coil