low-hazard content 低火险屋内物品
ordinary hazard content 普通火险屋内物品
high-hazard content 高度危险的物品
hazard d content 建筑内危险物品
The paper reports the hazard of much more content of Fe and Mn of water, the Fe-removing principle and result by natural Mn, operation caution and methods of extention service life.
分析了水中铁锰含量过多的危害，阐述天然锰砂的除铁原理、除铁效果、操作注意事项和延长使用寿命的方法。
The system normalizes the management form and content of occupational health management, and provides help and support for management and decision-making on occupational hazard of enterprises.
系统规范了企业职业危害管理的形式和内容，为企业的职业危害管理和辅助决策提供了技术支撑。
The core content establishing HSE management system is harmfulness identification and hazard evaluation .
建立HSE管理体系的核心是进行危害识别与风险评估。
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