The individual crystal units comprising the aggregate structure where the crystalline orientation does not change. The grain boundary is where these individual crystal units meet.
构成总的结构的单个的晶体个体，而晶体的方位并没有发生变化。晶界是这些单个的晶体单位相遇的界限。
IPN gel shows network structure and the aggregate of the network structures is spherical particle, the crystal structure can also be observed obviously.
IPN凝胶呈网状结构，聚合物网络结构的聚集体为圆球状颗粒形式，并可以观察到明显的结晶结构；
Experimental results showed that the formation of J-aggregate mainly depends on the dye structure, secondly depends on the property of the crystal of AgX-emulsion.
试验结果表明，染料的J -聚集态的形成主要取决于染料的结构，其次依赖于卤化银的晶形。
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