主要活动和服务过程中存在的不安全因素的特点，对容易导致高空坠落、物体打击、触电、机械伤害、车辆伤害、坍塌、食物中毒、火灾和爆炸、职业病等方面的危险源进行充分辨识（包括所有常规和非常规活动、进入作业现场所有人员以及工作场所的所有设施-The main activities and services that exist in the process characterized by insecurity, and easily lead to high-altitude crashed against objects, electric shock, mechanical injury, vehicle damage, collapse, food poisoning, fires and explosions, occupational hazards, etc. to fully identify (including all conventional and unconventional activities, access to all personnel operating at the scene, as well as all facilities in the workplace