农民工普遍从事建筑、矿山、化工类等苦、脏、累的高风险作业，事故和职业病发生率均较高。
Generally migrant workers engage in construction, mining, chemical and other types of hard, dirty, tired of high-risk operations, have a higher incidence of accidents and occupational diseases.
严格控制煤矿、金属非金属矿山、危险化学品、烟花爆竹、涉爆粉尘等高风险作业场所操作人员数量。
Strict control of coal mines, metal and nonmetal mines, dangerous chemicals, fireworks, explosive dust and other high risk workplace operators.
针对石化装置的检修特点，阐述装置检修的安全管理和技术工作，对检修时的高风险作业提出明确的要求和注意事项。
Discussion on safety procedure and technical requirement pertinent to petrochemical facilities maintenance and some measure will be taken for reducing high risk during maintenance operation.
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