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  Lou Yangsheng emphasized that it is necessary to implement fundamental measures, establish a dual preventive working mechanism for risk classification management and hidden trouble detection and management, control risks before hidden dangers, and eliminate hidden dangers before accidents; standardization should be used as an enterprise to strengthen safety, production, technology, and on-site It is an important means of management and implementation of supervision and management, strengthens the safety and standard management of the job site, comprehensively improves the competence and quality of employees, in-depth implementation of science and technology, and strives to build an intrinsically safe enterprise.mining rig ventilation,  It is forbidden to open amusement halls and Internet cafes in civil air defense works