The methods were employed such as the distributing agent pva of macromolecule and changing the drying method to improving the dispersivity of ceo2 nanoparticles and overcome the problem of agglomeration ( 3 )通过团聚机理和消除方法的分析，本试验采用高分子分散剂( pva )和改变干燥方式的应用研究以提高所得产品的分散性。
It can typecast wet or dry shape sand , improve the cast quality . in a word , it is a fine quality cast sand adhesives , which has the character of dilatability , cohesiveness , floatability . and gel dispersivity , repeated use 可以浇注湿态和干态型砂，改善铸件质量，并有良好的复用性，是一种优质的膨胀剂，黏合剂，悬浮性和胶体分散性的铸造型砂粘结剂。
( 3 ) by using the new method put out in ( 2 ) , hugoniot data of no - porous samples of enstatite ( mg0 . 92 , fe0 . 08 ) sio3 which initial density is 3 . 273g / m3 , were reduced and the modified hugoniot data shows very small dispersivity （ 3 ）用（ 2 ）中提出的新方法，对前人和本文的顽火辉石hugongiot实验数据进行了初始孔隙度修正。结果显示，不同研究者所得的hugongiot数据的分散性大大减小。
As guiding organizational structure in post modernity society network typifies unfolding , dispersivity and schematization . it provides necessary premise and basic condition for urban and rural fair communication and offers chance and possibility for cultural integration 网络作为后现代社会的主导组织结构有着开放性、分散性、系统性特征，为城乡间的平等交流提供了必要前提和基础条件，同时也为文化整合提供了机会和可能。
Yh - 908 is a kind of improving type product , it keep the performance of strong thickening , anti settling and sag prevention , the most important specialty is its pure white in appearance , the gel is colorless or light , high transparency , and well dispersivity and fineness Yh - 908产品是改进型产品，产品保持了增稠性能强，防沉，抗流挂号等优点以外，还拥有产品外观纯白，凝胶色泽为无色或浅色，透明度高等特点，此外，该产品也拥有很好的分散性能及分散细度。
Kaolinite - organic intercalation compound possesses not only the unique adsorptivity , dispersivity . porosity , rheological behaviour and surface acidity of the clay mineral but also the multivariate functional groups and the reactivity of the organic compound . as a new type of mineral materials , it has extensive potential application in catalysts , functional supporter , adsorbents and advance ceramics 高岭石有机插层复合物既具有粘土矿物特有的吸附性、分散性、流变性、多孔性和表面酸性，又具有机化合物的多变功能团和反应活性，作为新型矿物材料，在催化剂、功能载体、吸附剂、先进陶瓷材料等方面具有广阔的应用前景。
