消(Xiao)防(Fang)应(Ying)急(Ji)灯(Deng)是(Shi)一(Yi)种(Zhong)用(Yong)于(Yu)应(Ying)急(Ji)照(Zhao)明(Ming)和(He)指(Zhi)示(Shi)的(De)灯(Deng)具(Ju),(?)通(Tong)常(Chang)安(An)装(Zhuang)在(Zai)公(Gong)共(Gong)场(Chang)所(Suo),商(Shang)业(Ye)建(Jian)筑(Zhu),工(Gong)厂(Chang)车(Che)间(Jian)等(Deng)地(Di)方(Fang),(?)用(Yong)于(Yu)提(Ti)供(Gong)照(Zhao)明(Ming)和(He)指(Zhi)引(Yin)逃(Tao)生(Sheng)通(Tong)道(Dao)。(?)消(Xiao)防(Fang)应(Ying)急(Ji)灯(Deng)在(Zai)各(Ge)个(Ge)领(Ling)域(Yu)中(Zhong)都(Du)有(You)着(Zhuo)重(Zhong)要(Yao)的(De)应(Ying)用(Yong),(?)下(Xia)面(Mian)将(Jiang)...