The collection capacity of heavy metal ions by porous powder made from fly—ash is studied.
用实验的方法研究了用粉煤灰制取多孔粉末材料对重金属离子的富集能力。
It is made up of sand, cement, thickening powder, fly ash and admixture.
通俗地说，主要有黄砂、水泥、稠化粉、粉煤灰和外加剂组成。
It is made up of sand, cement, thickening powder, fly ash and admixture.
通俗地说，主要有黄砂、水泥、稠化粉、粉煤灰和外加剂组成。
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