The results showed that repeated formation and prolonged adsorption of acid dew on the surface of construction materials could accelerate deterioration and aging of the materials.

 
  • 結果表明:露水在建材表面反復形成和長(cháng)期附著(zhù)對材料的老化、侵蝕作用是可觀(guān)的。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan