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.
方法根据以往发表的文献及近年的科研成果资料，对游离二氧化硅累积接触量与尘肺累积发病率进行相关分析。
Methods Correlation of cumulative exposure to silica with cumulative incidence of pneumoconiosis was analyzed based on issued literatures and recent data about their scientific research.
本文介绍了应用X射线衍射仪测定矿山呼吸性粉尘中游离二氧化硅含量的基本原理、实验条件以及操作过程、方法步骤等。
Basic principle, experiment condition, operating process, method and steps of X-ray diffraction method to determine free silica content of respirable dust in mines are introduced in this paper.
游离二氧化硅致肺组织纤维化机制十分复杂，涉及多种细胞及生物活性物质参与的炎症反应、免疫反应、异物反应、细胞毒作用等。
The mechanism of fibrosis caused by free silica particles involves a lot of cells and reactions including inflammatory reaction, immunological reaction, foreign body reaction and cell toxic action.
我国接触二氧化硅粉尘作业人员较多，矽肺病患者数字较大，因此，加强对粉尘中游离二氧化硅含量的检测是一件非常重要和紧迫的工作。
It is already determined that free silicon dioxide for dust not only is the main causeation for silicosis, but also is the major targets or q.
我国接触二氧化硅粉尘作业人员较多，矽肺病患者数字较大，因此，加强对粉尘中游离二氧化硅含量的检测是一件非常重要和紧迫的工作。
It is already determined that free silicon dioxide for dust not only is the main causeation for silicosis, but also is the major targets or q.
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