The particulates have more acidic pollutants with strong acidity and have the corrodibility to grottoes.
细粒子中有较多的酸污染物并比粗粒子酸
,
些细粒子对石窟有侵蚀作用。
The particulates have more acidic pollutants with strong acidity and have the corrodibility to grottoes.
细粒子中有较多的酸污染物并比粗粒子酸
,
些细粒子对石窟有侵蚀作用。
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