| 释义 |
> as lemmasfusible cutout One of the commonest kinds is a fuse or fusible cutout, a short piece of metal in circuit which melts when the current attains an unsafe magnitude. There are also other kinds, mostly electro-magnetic in their form, which may be made to act with an increase, a decrease, or a change in direction of current. The name was formerly sometimes applied to a short-circuiting switch on a telegraph circuit.< |