| 释义 |
保险丝bǎoxiǎnsī电路中保险装置用的导线,一般用铅、锡等熔点低的合金或细铜丝、铜银合金丝制成。当电路中的电流超过限度时,丝就烧断,电路也就断开了,可以防止发生火灾或烧毁电器。{fuse; fuse-wire; electric circuit safety device consisting of a metal conductor of low melting point, such as lead or tin, thin wire of copper, or alloy of copper and silver, that melts and interrupts the circuit to prevent fires or burnout of electric appliances when the current exceeds a particular amperage} |