缓凝剂对晶面的选择性吸附，改变了二水石膏晶体的生长习性和形貌。
The preferred adsorption of retarders on different faces of gypsum crystal changes growth habit of dihydrate crystal and its crystal morphology.
当氟与铝共存时，石膏晶体的外形发生了极大的变化，几乎都形成了球状聚晶；
The shape of gypsum crystal changes little in the presence of Al 3+ ion.
结果表明：可溶磷主要分布在二水石膏晶体表面，其含量随磷石膏粒度增加而增加。
Experimental results show that water_soluble P 2O 5 is distributed on the surface of dihydrate gypsum crystals. Its content increases with increase of size of phosphogypsum.
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