岩石或矿物中没有与金属或金属化合物结合而呈游离状态的二氧化硅。
... 游离二氧化硅 free silicon dioxide ; freesillica 二氧化硅掩蔽 silicon dioxide masking 水合二氧化硅 Hydrated silica ...
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结晶型游离二氧化硅 Crystalline Free Silica
Therefore,in order to discover the cause of disease and control the production dust density,examining the free silicon dioxide content of the refinery fastly and accuratly is very necessary.
因此快速准确的检测这些冶炼厂的游离二氧化硅的含量对于找出病因,控制生产性粉尘的浓度是很有必要的。
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介绍了石灰岩中游离二氧化硅的化学物相分析方法。
A method for chemical phase analysis of free silica in limestone was discussed in this paper.
目的探讨游离二氧化硅累积接触与尘肺累积发病的剂量反应关系。
Objective to study dose response relationship between cumulative exposure to silica and cumulative incidence of pneumoconiosis.
结论硅粉生产由于粉尘中游离二氧化硅含量高、粒度细、致肺纤维化作用强，是一个职业病危害极大的行业。
Conclusions high content of SiO2 and the tiny granule in the dust has strong effect on inducing the pulmonary fibrosis. Thus quartz powder processing was a high occupational hazard industry.
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