采用共凝法制备的复合材料淀粉粒子的结晶结构消失，淀粉粒子的结构为无定形结构。
The crystal structure of starch particles in the composite prepared with co-coagulation method disappeared and transferred to amorphous state.
在装配区内，观察到不同形态的病毒装配中间体和一些无定形结构：管状物和膜样物质。
The viromatrix contained viral assembly intermediates with different forms and amorphous structures which included tubules and membranous materials.
但由于孔壁是无定形结构，酸性较弱和水热稳定性较差，使其在催化领域的应用受到很大限制。
However, its application to petrochemical industry is limited due to the amorphous character of mesopore wall and weak acidity, as well as poor hydrothermal stability.
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