目的了解新建大型煤矿作业场所粉尘危害状况，为今后开展煤矿尘肺防治工作提供依据。
Objective To understand the status of dust hazard in the new large coal mines and provide the basis for the prevention of pneumoconiosis.
水泥作业环境恶劣，粉尘环境对人不具有瞬间伤及生命的危害，侵害是长期积累的。
Although the cement work environment is bad, the dust environment do not have a moment to harm to the person and the life endanger of violate is the long-term backlog.
针对冶金工厂实际情况，经过现场实验调查、数据统计分析，探讨了冶金工厂作业场所呼吸性粉尘的危害程度。
Based on the actual situation in metallurgical factories, the hazard of respiratory dust is discussed through the experimental investigation and data analysis.
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