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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.
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。
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