... 高硫低级煤:grizzle 高硅尘末:high silica dust 高工祖钻车:high back jumbo ...
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Chronic simple silicosis has been reported to occur from environmental exposures to silica in regions with high silica soil content and frequent dust storms.
有报道慢性简单矽肺发生的环境暴露硅,高硅土含量和沙尘暴频繁的地区。
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