短语词组短语MAIN S FUSE 保险丝main service fuse 总火线保险器;总火线保险main fuse blown 主熔断器熔断main furnace building fuse 电源保险丝main reaction service fuse 进户线熔断器Main Fuse Holders 保险固定器main fuse -link 总熔断连杆main electric power supply fuse 总电源保险丝 返回 main fuse