emergency light短语¹⁴⁴⁹⁷²⁺² 基本例句 🚨紧急灯,事故照明器,故障信号灯 In this paper, principle and composition of the centralized monitoring system of emergency light with fire control is discussed, including features of hardware and software design. 介绍了消防应急灯集中监控系统的工作原理及组成，对软硬件的设计特点进行了一定的叙述。 cnki