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阐述PHA与LEC评价法,并将二者相结合应用到煤矿提升运输系统评价中,查找该系统中的危险源,提出整改措施,为减少事故发生的概率,确保煤矿提升运输的安全提供依据。
Explain PHA and LEC evaluation method, and apply the two together to coal mine transportation system evaluation, find out the sources of danger in the system and propose corrective measures to provide the basis for reducing the probability of accidents and ensuring the safety of coal mines.