详细解释:【化】 安全导火线; 安全引信; 定时引信
英语解释：
名词 safety fuse:
a slow-burning fuse consisting of a tube or cord filled or saturated with combustible matter; used to ignite detonators from a distancean electrical device that can interrupt the flow of electrical current when it is overloaded同义词：fuse, electrical fuse