communication and alarm meaning in Chinese

通信和警报

The red area - warning lines , warning marks , and warning specifications in chinese shall be displayed , and communication and alarm equipment shall be installed in the workplaces where high toxic substances are used
高毒作业场所应当设置红色区域警示线、警示标识和中文警示说明，并设置通讯报警设备。
Article 20 the employing units shall guarantee the normal service conditions of the safeguards against occupational health hazards , emergency and first - aid facilities , and communication and alarm facilities , and shall not dismantle them or stop the use of them without authorization
第二十条用人单位应当确保职业中毒危害防护设备、应急救援设施、通讯报警装置处于正常适用状态，不得擅自拆除或者停止运行。