| 摘要 |
<p>Bathtub has a primary coil (3), with an AC supply, in its wall (2). The primary coil encircles, at least partially, a space (1) that is accessible from the bath itself, but that in operation is sealed off from the bath. Within the space is a secondary coil that is coaxial with the first coil and has an alternating current induced in it for supply of an electrical appliance.</p> |
