In the early stage the amount of C-S-H gel is little,and polymorphic C-S-H started to precipitate in the acceleration period and formed a flower structure.

 
  • 在水化早期C-S-H凝膠數量較少,在加速期才大量形成,最終成為花朵狀結構。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan